Vocabulary for Reddit | Karma & Subreddits Explained

Reddit vocabulary helps you understand subreddits, posts, comments, upvotes, downvotes, karma, flair, moderators, AutoModerator and Reddit slang. Start with subreddit, post, comment, vote and karma. A subreddit is a topic-based community; posts start discussions and comments add responses.

The important distinction is upvotes versus karma. Reddit’s official help explains that karma is an approximate reflection of votes received, not a one-to-one conversion. A highly voted answer can still contain a factual error. Another key difference is removed versus deleted: moderators may remove content from a community, but they do not thereby edit or erase the author’s original text from every possible location.

Quick answer: Read each subreddit’s local rules before posting, choose the appropriate post flair, and use New, Hot or Top sorting according to your task. Understand that OP means Original Poster, AMA means Ask Me Anything, TL;DR means a short summary and ELI5 asks for a simpler explanation. Treat recommendations as community perspectives that still need checking.

Finding information: use subreddit search, sort choice and time filters.
Reading discussions: distinguish posts, comments, replies and OP.
Voting: understand score, karma and why popularity is not proof.
Publishing: check rules, flair and self-promotion restrictions.
Moderation: distinguish removal, deletion, lock, ban and appeals.
Staying safe: avoid doxxing, misleading links, harassment and unsupported high-stakes advice.

This guide explains the words readers encounter when navigating Reddit. For more practical vocabulary, visit eduKateSG Vocabulary Articles & Knowledge.

How to read a Reddit discussion correctly

Imagine a post asking how to repair a bicycle. The first comment receives many upvotes and describes a plausible method. A second comment offers a detailed caution but receives fewer votes. A reader should not assume the first is automatically safer. The voting system reflects community participation and judgement, while technical correctness still depends on evidence and proper instructions.

Reddit’s Help Center says communities are called subreddits and are operated under community-specific rules. Its October 2026 guidance explains that voting influences what users see. The March 2026 karma guidance explicitly warns that votes and karma do not follow a one-to-one relationship.

Read the post’s date and sort order. A popular discussion from years ago may refer to a discontinued product, outdated law or superseded interface. Sorting by Top can uncover widely discussed material; sorting by New is more useful for recent developments. In all cases, compare high-stakes claims against appropriate official sources.

Subreddits, posts and the Reddit interface

These 35 terms belong together. Each example shows how the term helps when reading or contributing to a discussion.

Reddit — A website and app organised around communities, posts and discussions. In use: Reddit contains communities for many interests.
Subreddit — A topic-centred community within Reddit, also commonly called a community. In use: The local-history subreddit has its own rules.
Community — A group of people using a subreddit to share and discuss a subject. In use: A community can restrict what members post.
r/ — A prefix commonly used before the name of a subreddit. In use: The r/ prefix refers to a community, not an individual.
u/ — A prefix commonly identifying a Reddit user account. In use: A u/ mention points to a person or account.
Username — The public account identifier used to participate on Reddit. In use: Check the username before replying.
Display name — A name or label associated with a user or profile under available settings. In use: A display name is not an identity check.
Profile — A page showing a user’s public activity and information according to the service’s rules. In use: A profile can show posts and comments.
Avatar — An image or stylised character representing a user’s account. In use: An avatar can be copied or impersonated.
Home feed — A stream combining eligible posts and recommendations under the viewer’s account settings. In use: Home feed content may include communities you do not follow.
Community feed — A collection of posts shown inside one subreddit. In use: Read the community feed before posting a duplicate question.
Post — An item submitted to Reddit, containing text, media or a link under the community’s options. In use: A post can ask a specific question.
Text post — A submission whose main content is written text. In use: Use a text post for a detailed explanation.
Link post — A submission pointing to a webpage or other outside resource. In use: Check the original linked source.
Image post — A submission centred on an image or gallery. In use: An image post may need context in its title.
Video post — A submission using supported video material. In use: The video post demonstrates the technique.
Gallery — A post containing several images under supported settings. In use: Use a gallery to show the steps.
Post title — The headline naming the submission and helping readers understand its purpose. In use: Reddit says post titles cannot generally be edited after posting.
Post body — The main material inside a text-based submission. In use: Edit the body to correct a clear factual mistake.
Comment — A reply or contribution to the discussion below a post. In use: A useful comment provides reasons and evidence.
Parent comment — The earlier comment to which another reply is attached. In use: Read the parent comment before arguing.
Comment thread — A sequence of nested discussion responses. In use: The thread contains several interpretations.
Nested reply — A response displayed beneath another comment under the discussion tree. In use: Nested replies can lose context if quoted alone.
Crosspost — A post shared into another community through supported Reddit tools. In use: Crossposting may be restricted by local community rules.
Share link — A URL used to direct someone to a post or comment. In use: A share link can expose public activity.
Saved post — A post bookmarked in the user’s account for later access. In use: Save an instructional discussion for later.
Follow post — A supported option to get updates on a selected discussion, subject to notifications. In use: Following does not guarantee every reply will be noticed.
Join community — Subscribe to or join a subreddit under its community rules. In use: Joining a community is not the same as becoming a moderator.
Leave community — Stop participating in the joined community list or subscriptions under its rules. In use: Leaving does not necessarily remove previous public posts.
Community description — A summary explaining the subreddit subject and expectations. In use: Read the description to check whether a question fits.
Community sidebar — An area often showing community information, rules and resources on some interfaces. In use: The sidebar may contain the FAQ or posting format.
Wiki — A set of community-maintained reference pages where supported. In use: Check the wiki before asking a common question.
Megathread — A large or recurring central discussion for a particular topic. In use: Use the weekly megathread when the rules require it.
Pinned post — A highlighted community post placed prominently by moderators under current controls. In use: A pinned FAQ can answer questions quickly.
Archived discussion — An older post in a state that may limit new interaction under applicable community or platform settings. In use: Do not assume an archived discussion accepts fresh replies.

Voting, karma and search results

These 34 terms belong together. Each example shows how the term helps when reading or contributing to a discussion.

Upvote — A signal that a post or comment contributes positively under Reddit’s voting norms. In use: Upvote a helpful answer, not merely one you agree with.
Downvote — A signal used to indicate a contribution is not helpful or does not belong under Reddit’s norms. In use: Downvotes are not a reliable fact-checking system.
Vote score — A displayed or reported voting measure derived from user activity under Reddit’s rules. In use: The visible score need not equal the exact count of all votes.
Karma — An approximate measure associated with votes received on a user’s posts and comments. In use: Karma does not increase one-for-one with every upvote.
Post karma — A portion of karma associated with voting activity on submitted posts. In use: High post karma does not prove professional expertise.
Comment karma — A portion of karma associated with responses to comments. In use: Comment karma reflects participation, not a formal credential.
Community karma — Karma earned within a particular subreddit, where this metric is used in restrictions or display. In use: Some communities may require local karma before posting.
Karma requirement — A minimum amount or form of karma needed for selected community activity. In use: A new account may be filtered until requirements are met.
Account age requirement — A community rule limiting activity by accounts younger than a threshold. In use: Read the community’s minimum account age.
Post score — The public score associated with a submission under Reddit’s voting display. In use: Score is not the same as how many unique people read a post.
Vote fuzzing — The service’s practice of obscuring or varying displayed voting numbers in certain circumstances. In use: An approximate displayed vote count is not a precise census.
Hot sorting — A way of prioritising recent activity and engagement under Reddit’s ranking systems. In use: Hot is useful for active topics.
Top sorting — A sort focusing on highly voted posts within a selected timeframe. In use: Top this month differs from Top all time.
New sorting — A chronological sort prioritising newly submitted posts. In use: New is better for recently posted updates.
Relevance sorting — A search ordering designed to return terms and posts considered most relevant to the query. In use: Relevance does not necessarily show the newest result.
Comment Count sorting — An ordering based on the number of comments under the available interface. In use: Many comments can mean controversy rather than quality.
Time filter — A limitation on search or Top results by a period such as week, month or year. In use: Use a time filter when policies changed recently.
Search query — Terms typed into Reddit search to find posts and communities. In use: Search an exact error message first.
Search operator — A supported syntax feature that narrows a search according to specific criteria. In use: Search operators depend on Reddit’s current documentation.
Subreddit search — A search narrowed to a particular community. In use: Look within the travel subreddit for a local answer.
Post flair — A category tag added to a submission under community settings. In use: Choose the Help flair when asking for assistance.
User flair — Text or a symbol associated with a person’s identity inside a particular community. In use: User flair can identify a hobby or claimed role.
Flair requirement — A rule requiring posts to carry a permitted category before submission. In use: A missing flair can trigger removal.
Spoiler tag — A marking that hides content likely to reveal important story details until opened. In use: Use spoiler tags for unannounced endings.
NSFW tag — A marking used for content considered Not Safe for Work under Reddit policies. In use: NSFW content requires the appropriate warning.
View count — A measure of post exposure under the platform’s available analytics, not necessarily distinct meaningful readers. In use: A view is not proof the message was understood.
Award — A supported recognition mechanism using Reddit’s current award features and eligibility rules. In use: An award is not a certificate of truth.
Contributor quality — A broad concept describing helpful and relevant participation rather than merely high scores. In use: Good contributions cite evidence and respect rules.
Bandwagon effect — A situation where people follow visible popular opinion rather than assessing independently. In use: Hidden early vote scores may reduce bandwagoning.
Echo chamber — A group where repeated agreement limits exposure to dissenting views or evidence. In use: A highly voted claim can still be wrong.
Vote manipulation — Attempts to artificially influence scores through coordinated, deceptive or other prohibited behaviour. In use: Do not buy or arrange votes for a post.
Brigading — Coordinated activity directed at another discussion or community to disrupt or influence it. In use: Brigading may violate platform or community rules.
Lurker — A person who reads content without often commenting or posting. In use: A lurker can still learn useful information.
Karma farming — Posting primarily to accumulate scores or status rather than contribute meaningfully. In use: Karma farming can reduce the quality of discussion.

Moderators, community rules and enforcement

These 34 terms belong together. Each example shows how the term helps when reading or contributing to a discussion.

Moderator — A volunteer or authorised community manager who uses moderation tools under Reddit policy. In use: A moderator can remove rule-breaking posts from their subreddit.
Mod — An informal abbreviation for moderator. In use: Contact a mod through the community’s intended channel.
Administrator — A Reddit employee or authorised platform-level role with separate powers from community moderators. In use: An administrator is not the same as a volunteer mod.
Community rule — A local standard governing acceptable participation in one subreddit. In use: Read community rules before posting a referral link.
Reddit Rules — Platform-wide standards that apply beyond local community guidelines. In use: Local rules cannot override platform safety standards.
Moderation queue — An interface where moderators review flagged or filtered material. In use: A post may wait in the mod queue.
AutoModerator — A configurable automated moderation system used by Reddit communities. In use: AutoModerator may filter a new account’s post.
Automated filter — A rule-driven system flagging or blocking selected content or activity. In use: Filters can make mistakes without proving malicious intent.
Spam filter — A system that detects or filters unwanted mass or suspicious submissions. In use: Repeated promotional text may trigger spam controls.
Removed post — A submission removed from public community visibility by moderators or automated action without necessarily deleting the author’s own content record. In use: Removed is different from user-deleted.
Deleted post — A post the author has deleted through the account’s controls, subject to copies and platform retention. In use: Deleting does not retract screenshots.
Lock comments — A moderation action preventing most ordinary members from adding new comments to the affected post or comment. In use: A locked post can still be voted on.
Locked post — A submission whose normal new-comment activity is restricted under the lock rule. In use: Locked is not the same as deleted.
Ban — A restriction preventing an account from participating in a community under its terms. In use: A ban may be permanent or time-limited.
Temporary ban — A community restriction lasting a defined period. In use: A temporary ban differs from a permanent ban.
Permanent ban — A ban without a specified automatic expiry, subject to appeal or later moderation action. In use: Permanent does not mean a decision can never be reconsidered.
Mute in modmail — A moderation action limiting some contact through the moderation messaging system. In use: A modmail mute does not equal a platform ban.
Modmail — A messaging channel for communicating with a community’s moderation team. In use: Use modmail for a removed-post question.
Appeal — A request for reconsideration of an enforcement action through an allowed channel. In use: Make an appeal factual and respectful.
Removal reason — An explanation provided for why a post was removed under a rule. In use: Read the removal reason before reposting.
Report — A notification to Reddit or moderators about potential content problems. In use: Report harassment rather than engaging further.
Report abuse — Misusing reporting systems to target lawful participation or overwhelm moderation. In use: Report abuse can itself be actionable.
Approved user — An account granted selected community access under relevant settings. In use: An approved user is not automatically a moderator.
Public community — A subreddit accessible under ordinary public browsing rules. In use: Public does not mean every post is welcome.
Restricted community — A subreddit where selected posting or commenting actions can be limited to approved users. In use: Restricted may still allow reading by the public.
Private community — A subreddit with membership-based access controls under platform settings. In use: Private does not guarantee screenshots cannot escape.
Premium-only community — A community category with access conditioned on specified premium-related rules under current platform options. In use: Check eligibility before requesting entry.
Post approval — A moderation decision allowing selected content to appear in a community. In use: Post approval is not a factual endorsement.
Distinguished comment — A moderator or authorised account’s comment marked to indicate an official capacity or action. In use: Distinguished does not prove a factual claim is correct.
Sticky comment — A highlighted comment placed near the top by authorised moderators where supported. In use: Read a sticky comment for clarifying rules.
Scheduled post — A moderator-arranged submission set to publish at a planned time through supported tools. In use: Scheduled posts can run recurring megathreads.
Community ban appeal — A request to the specific community’s moderators to reconsider its ban. In use: A ban appeal should address the cited rules.
Moderation transparency — Clear explanation of local rules and actions, while respecting privacy. In use: Transparent moderation supports consistent treatment.
Community culture — The shared norms and style of a subreddit that may differ from site-wide expectations. In use: Observe community culture before contributing.

Reddit slang, credibility, privacy and responsible participation

These 35 terms belong together. Each example shows how the term helps when reading or contributing to a discussion.

OP — Original Poster, the person who created the post under discussion. In use: Ask OP for the date of the reported event.
AMA — Ask Me Anything, a question-and-answer discussion format. In use: An AMA participant should be evaluated on their actual expertise.
TIL — Today I Learned, a label used for sharing a recently discovered fact. In use: A TIL should be supported rather than merely surprising.
ELI5 — Explain Like I’m Five, a request for a clear, accessible explanation rather than literal preschool instruction. In use: Use an ELI5 request for unfamiliar science terms.
TL;DR — Too Long; Didn’t Read, usually introducing a short summary. In use: Add a TL;DR without hiding important qualifications.
IMO — In My Opinion, indicating a viewpoint rather than a verified fact. In use: IMO helps separate preference from evidence.
IMHO — In My Humble Opinion, a modestly framed personal viewpoint. In use: IMHO still needs evidence for factual claims.
IIRC — If I Recall Correctly, signalling dependence on memory and possible uncertainty. In use: IIRC is an admission that details need checking.
FTFY — Fixed That For You, used to signal a correction, sometimes sarcastically. In use: FTFY may be playful rather than a substantive correction.
IRL — In Real Life, referring to offline events or situations. In use: IRL results can differ from online claims.
ITT — In This Thread, referring to the ongoing discussion. In use: ITT many users ask about delivery delays.
Meta discussion — A discussion about the community itself or the way a topic is discussed. In use: A meta thread may address subreddit rules.
Throwaway account — A separate account sometimes used for a particular sensitive discussion, subject to platform rules. In use: A throwaway does not guarantee anonymity.
Alt account — An additional account belonging to the same person, distinct from the primary account. In use: An alt account must still respect ban and platform rules.
Shadowban — A colloquial term sometimes used for visibility restrictions; the exact enforcement process must be verified rather than inferred. In use: Low views alone are not proof of a shadowban.
Ban evasion — Using another account to avoid an imposed community or platform restriction in violation of rules. In use: Do not create an alt simply to bypass a ban.
Doxxing — Publishing someone else’s private identifying information without appropriate permission, often to harm them. In use: Never post a person’s address during an argument.
Personal information — Details that can identify or locate a person under relevant context. In use: Redact phone numbers before posting screenshots.
Redaction — Removing information so recipients cannot readily recover the protected details. In use: Blurred text can sometimes still expose information.
Anonymity — An absence of a direct link between activity and real identity, which pseudonyms alone do not guarantee. In use: A unique story can identify a person despite a pseudonym.
Pseudonym — A chosen online account name different from a legal name. In use: A pseudonym is not proof of privacy.
Source — An original document, firsthand observation or reference used to support a claim. In use: Read the linked source before accepting a conclusion.
Citation — A reference directing readers to the evidence for a statement. In use: A citation must actually support its claim.
Anecdote — A person’s account of an experience, which may be genuine but not representative. In use: One anecdote does not establish a general medical rule.
Firsthand report — A statement from someone claiming to have personally observed the event. In use: A firsthand report may still be mistaken or incomplete.
Verified fact — A claim checked against suitable evidence under an appropriate standard. In use: Upvotes alone do not create verified facts.
Misinformation — False or misleading material presented as factual, regardless of intent. In use: A popular post can spread misinformation.
Disinformation — False or misleading content spread with the intent to deceive. In use: Intention may be hard to infer from one comment.
Conflict of interest — A relationship that could influence a recommendation or claim. In use: A seller promoting their own product should disclose the relationship.
Affiliate link — A link that can earn its sharer compensation for qualifying actions. In use: Some communities restrict or ban affiliate links.
Self-promotion — Posting content connected to one’s own project, product or account. In use: Read self-promotion rules before sharing a website.
Disclosure — A statement revealing material context, such as sponsorship or personal involvement. In use: Disclose when you are discussing a company you work for.
Fact-checking — Comparing a claim with independent and appropriate evidence. In use: Fact-check claims about laws or medical advice using primary sources.
Good-faith disagreement — A respectful difference of interpretation based on reasons rather than abuse. In use: Good-faith disagreement can improve discussion quality.
Harassment — Unwanted hostile targeting, abuse or intimidation under applicable platform standards. In use: Report harassment rather than retaliating.

Five common Reddit problems, explained clearly

1. My first post is not showing up

A new account may be subject to account-age, karma, post flair or other local requirements. It may also have been queued for moderator review or filtered as suspected spam. Reddit confirms that some communities set karma thresholds to discourage spam. Read the rules and any removal message, then use the community’s proper modmail route rather than reposting repeatedly.

2. A moderator removed my post, but I can still see it

The word removed describes community visibility or moderation, not necessarily deletion of the author’s stored item. Reddit’s current moderator documentation explicitly distinguishes moderators removing submissions from authors deleting their own content. Check the removal reason before taking action. If the community has an appeal process, use it politely and explain how the post fits its rules.

3. A post has thousands of upvotes—should I trust it?

Votes are signals of participation, not independent fact-checks. The post may be helpful, funny, emotionally resonant or simply aligned with community opinion. Ask whether there is a primary source, relevant date, reproducible demonstration or qualified professional explanation. Reddit can be excellent for gathering diverse firsthand experiences, but that does not make every experience representative.

4. A discussion is locked and I cannot reply

A moderator may have used the Lock action. Reddit’s October 2026 help explains that locking prevents most ordinary members from adding new comments while other actions, such as some voting and editing, can remain available. It is not proof that the original post is false, removed or deleted. Do not try to evade moderation by harassing users elsewhere.

5. A stranger asks for identifying information

Reddit accounts are often pseudonymous, not guaranteed anonymous. An unusual employment history, image location or combination of life details may still identify a person. Avoid publishing home addresses, phone numbers, medical documents or private messages without appropriate permission. Redact screenshots carefully and do not disclose someone else’s identity to win an argument.

Karma, votes, scores and credibility compared

Upvote: community signalling that a contribution is useful or positive under voting norms.
Downvote: community signalling that a contribution is poor or unhelpful under those norms.
Vote score: a displayed measure influenced by voting, which can be obscured or adjusted.
Karma: an approximate reflection of votes received, not a 1:1 total.
Post karma versus comment karma: contributions earned from different submission types.
Credibility: assessed through evidence, accuracy, reasoning and expertise—not a karma badge.
Community-specific requirements: local rules that may require age, karma or approved-user status.

Common Reddit words that cause misunderstandings

Subreddit versus thread: the community differs from one conversation within it.
OP versus moderator: an original poster need not have any enforcement authority.
Upvote versus fact-check: a score is not external verification.
Post flair versus user flair: one tags content; the other labels a participant in the community.
Removed versus deleted: moderation visibility differs from the author’s deletion.
Locked versus banned: a discussion restriction differs from an account restriction.
Top versus New: popular results differ from newly published ones.
AMA versus verified expertise: the discussion format does not guarantee that a participant’s credentials are genuine.
TL;DR versus complete evidence: a summary can omit qualifications that matter.
Pseudonym versus anonymity: a nickname does not guarantee real-world identity cannot be inferred.

How to use Reddit for research without mistaking opinions for facts

1. Define the question. Use a precise subreddit and search query. A review of one model year is not necessarily useful for a newer product.

2. Choose the right sort and timeframe. Search Top for widely discussed material and New for recent changes. Read the date of every cited claim.

3. Separate observation from inference. A person may genuinely have experienced a problem without proving every cause or prevalence estimate. Use phrases such as “one reviewer reported” rather than inventing a universal conclusion.

4. Verify consequential claims. For health, law, finance or personal safety, consult relevant original guidance or qualified professionals. A post’s positive score should not override an authoritative current record.

5. Participate ethically. Respect local rules, disclose commercial involvement, avoid identifying others and correct your own errors clearly. Useful participation has more lasting value than chasing karma.

Practice the vocabulary

A topic-based Reddit community: subreddit.
A user who started the discussion: OP.
A tag categorising the subject of a submission: post flair.
A community label next to a username: user flair.
Voting-related account score: karma.
A recurring central discussion for common questions: megathread.
A volunteer maintaining local rules: moderator.
An automated rule filtering new messages: AutoModerator.
A post still exists but is not visible through normal community listings: potentially removed.
A request for a very simple explanation: ELI5.
A short summary of a long post: TL;DR.
A formal request to the moderators: modmail.

Frequently asked questions

What is a subreddit?

A Reddit community focused on a topic, with its own rules and moderation arrangements.

Do 100 upvotes give exactly 100 karma?

No. Reddit’s official help states that karma reflects votes approximately and does not correspond one-for-one.

Why can I not post in a subreddit?

The community may enforce account age, karma, flair, approval or moderation requirements. Read its rules and any official removal explanation.

What is the difference between moderator and administrator?

A moderator manages an individual community as a volunteer or authorised member; a Reddit administrator operates at the platform level.

Can moderators delete another person’s text?

Reddit’s guidance says community moderators can remove submissions from their subreddit but cannot edit or directly delete other users’ authored posts in the ordinary sense.

Why is a discussion locked?

Moderators can prevent new ordinary comments for several reasons. Locked does not mean the same as deleted.

Is a high-voted answer always correct?

No. Popularity is a social signal rather than independent evidence. Verify important factual claims.

Are throwaway accounts truly anonymous?

Not necessarily. Unique details, screenshots or other records can still identify someone. Protect personal information deliberately.

Official Reddit sources and further vocabulary

Reddit changes features and local subreddit rules. These original help articles support the terminology and distinctions explained here.

Vocabulary for Reddit | Karma, Subreddits and Community Terms Explained