Welcome to Anju vocabulary! Follow water from a river diagram to a storage tank, then ask how it reaches a building and what happens after use. These 100 English words connect geography with familiar daily services. They help you describe water movement, read a simple network and distinguish a visible condition from a measured quality.
Anju is a city in South Pyongan Province through which the Chongchon River passes. That river setting introduces general hydrology and water-service vocabulary. The guide moves from catchment areas to pipes, treatment stages and stormwater. Learning the connections makes technical words easier to use in a clear sentence.
This Anju travel vocabulary list contains meanings, original examples and short reasoning tasks. Supply networks, treatment diagrams and numerical exercises are fictional or general teaching models. They do not map Anju's current utilities, establish local drinking-water quality or report a recent flood. Use them to understand the words before reading a dated, location-specific account.
Top 100 Vocabulary Words for Anju
watershed, catchment area, river basin, source region, river mouth, drainage network, tributary stream, river reach, channel bed, bankfull
discharge, flow rate, stream velocity, water level, stage gauge, hydrograph, baseflow, peak flow, low flow, overland flow
infiltration, percolation, groundwater, water table, aquifer, recharge, seepage, spring water, abstraction, water intake
pumping station, storage tank, water tower, distribution main, service pipe, pressure head, pressure loss, leakage, water meter, valve
stopcock, non-return valve, pipework, pipe joint, water pressure, potable, non-potable, raw water, treated water, drinking water
water treatment, screening, coagulation, flocculation, settling tank, filtration, filter bed, disinfection, chlorination, residual chlorine
waterborne, microorganism, pathogen, sanitation, sewerage, sewage, wastewater, stormwater, greywater, final effluent
outfall, storm drain, manhole, gully, combined sewer, separate sewer, overflow, retention pond, detention basin, permeable paving
rain garden, rainwater harvesting, roof runoff, water balance, water demand, water conservation, water reuse, recycled water, water footprint, water scarcity
dry spell, flood warning, flood risk, flood extent, inundation, high-water mark, return period, river restoration, riparian buffer, hydrology
Word Meanings and Example Sentences
| Word | Meaning | Example |
|---|---|---|
| watershed | land draining towards a common water outlet | A watershed surrounds the river network on the classroom map. |
| catchment area | the area collecting water for a river or outlet | The catchment area extends beyond the city boundary. |
| river basin | the land drained by a river and its tributaries | The river basin is larger than the channel itself. |
| source region | the area where a river begins | The source region lies above the city in the simplified map. |
| river mouth | the place where a river enters another water body | The river mouth lies beyond the inland town on the map. |
| drainage network | the connected system of streams and rivers | The drainage network links smaller streams with the main river. |
| tributary stream | a smaller stream joining a larger river | A tributary stream feeds the main river in the model. |
| river reach | a section of a river | One river reach is selected for the reading exercise. |
| channel bed | the bottom surface of a water channel | The channel bed appears below the water in cross-section. |
| bankfull | at the level where a channel is filled to its banks | Bankfull describes a water level in the general diagram. |
| discharge | the volume of water passing a point per unit time | Discharge needs both a volume unit and a time unit. |
| flow rate | the amount of fluid moving per unit time | The fictional flow rate is written in litres per second. |
| stream velocity | the speed of water moving in a stream | Stream velocity concerns speed rather than total water volume. |
| water level | the height of a water surface relative to a reference | Water level is recorded against a marked reference. |
| stage gauge | an instrument or scale for observing water level | The stage gauge has numbered markings in the drawing. |
| hydrograph | a graph of river flow or level over time | A hydrograph shows the fictional rise and fall of flow. |
| baseflow | streamflow sustained between rainfall events, often by groundwater | Baseflow continues in the simplified diagram between storms. |
| peak flow | the highest flow during a defined period | Peak flow occurs at the highest point of the graph. |
| low flow | comparatively small river flow within a stated context | Low flow appears in the dry-period example. |
| overland flow | water moving across the ground surface | Overland flow is shown by arrows pointing towards the channel. |
| infiltration | the movement of water into soil | Infiltration is shown by arrows entering the ground. |
| percolation | the movement of water through porous material | Percolation carries water deeper in the soil diagram. |
| groundwater | water below ground in saturated spaces | Groundwater occupies the saturated layer in the illustration. |
| water table | the upper surface of a saturated groundwater zone | The water table is marked with a dashed line. |
| aquifer | a geological formation able to store and transmit groundwater | The aquifer is shown below the unsaturated layer. |
| recharge | water entering a groundwater system | Recharge adds water to the illustrated aquifer. |
| seepage | slow movement of water through material | Seepage appears along the base of the embankment sketch. |
| spring water | water emerging naturally from the ground | Spring water is a source description rather than a purity guarantee. |
| abstraction | the taking of water from a natural source | Abstraction removes water in the general supply diagram. |
| water intake | a point where water enters a supply system | The water intake is labelled beside the river. |
| pumping station | a facility moving water using pumps | The pumping station connects two parts of the model network. |
| storage tank | a container holding water or another substance | A storage tank holds water in the classroom diagram. |
| water tower | an elevated structure storing water | The water tower stands above the illustrated houses. |
| distribution main | a principal pipe delivering water through a network | The distribution main connects several smaller pipes. |
| service pipe | a pipe connecting a building to a supply network | The service pipe reaches the fictional school. |
| pressure head | fluid pressure expressed as an equivalent column height | Pressure head is given as a height in the worksheet. |
| pressure loss | a decrease in pressure through a system | Pressure loss is discussed along the model pipe. |
| leakage | unintended escape of water or another fluid | Leakage creates a gap between supplied and retained water. |
| water meter | a device measuring water use or flow volume | The water meter records the fictional household's use. |
| valve | a device regulating flow through a passage | A valve symbol appears on the pipe diagram. |
| stopcock | a valve used to shut off a water supply | The stopcock is identified in the household vocabulary picture. |
| non-return valve | a valve allowing flow in only one direction | The non-return valve has an arrow in the diagram. |
| pipework | a connected arrangement of pipes | Pipework carries water between the labelled parts. |
| pipe joint | a connection between pipe sections | A pipe joint links the two illustrated sections. |
| water pressure | the force exerted by water per unit area | Water pressure and water volume answer different questions. |
| potable | suitable for drinking | Potable is a quality claim requiring relevant evidence. |
| non-potable | not suitable for drinking | Non-potable water is clearly labelled in the example. |
| raw water | water before treatment for a stated use | Raw water enters the general treatment diagram. |
| treated water | water after a specified treatment process | Treated water has passed through the illustrated process. |
| drinking water | water intended and suitable for human consumption | The worksheet separates drinking water from general river water. |
| water treatment | processes used to achieve a required water quality | Water treatment involves more than judging appearance. |
| screening | removing larger material with a screen | Screening is the first labelled stage in the model. |
| coagulation | a process destabilising fine particles so they can combine | Coagulation helps explain why small particles can gather. |
| flocculation | the formation of larger clusters of particles | Flocculation produces clusters in the classroom illustration. |
| settling tank | a tank allowing suspended material to settle | The settling tank appears before the filter in the diagram. |
| filtration | removing material by passing fluid through a medium | Filtration separates some particles from the model water. |
| filter bed | a layer of material through which water passes | The filter bed is shown as several labelled layers. |
| disinfection | a process reducing or inactivating harmful microorganisms | Disinfection is discussed separately from particle removal. |
| chlorination | the use of chlorine compounds in treatment | Chlorination is a treatment term in the reading passage. |
| residual chlorine | chlorine remaining after a treatment reaction or period | Residual chlorine is a measured quantity in the example. |
| waterborne | carried or transmitted through water | Waterborne describes a transmission route in the glossary. |
| microorganism | an organism too small to see clearly unaided | A microorganism cannot be ruled out by clear-looking water. |
| pathogen | an agent capable of causing disease | A pathogen is identified by its harmful potential. |
| sanitation | systems and practices for managing waste and hygiene | Sanitation connects water vocabulary with community services. |
| sewerage | the system of sewers carrying wastewater | Sewerage names infrastructure rather than the liquid waste. |
| sewage | wastewater containing domestic or similar waste | Sewage travels through the fictional sewerage system. |
| wastewater | water whose quality has changed through use | Wastewater leaves the buildings in the general diagram. |
| stormwater | water from rain or snowmelt flowing over surfaces | Stormwater is shown entering a street drain. |
| greywater | domestic wastewater excluding toilet waste | Greywater is distinguished from toilet wastewater in the lesson. |
| final effluent | liquid leaving the final stage of a treatment process | Final effluent is labelled at the end of the model process. |
| outfall | a point where a drain or sewer discharges | The outfall is marked at the end of the pipe. |
| storm drain | a drain collecting runoff from rain | A storm drain receives water from the model street. |
| manhole | an access opening to underground infrastructure | The manhole cover is labelled in the street picture. |
| gully | a small channel or a drainage inlet | The worksheet uses gully for a road drainage inlet. |
| combined sewer | a sewer carrying both wastewater and stormwater | The combined sewer receives two types of flow. |
| separate sewer | a sewer network keeping different wastewater flows apart | The separate sewer diagram distinguishes stormwater from sewage. |
| overflow | water or other material exceeding a container's capacity | Overflow occurs when the fictional tank becomes too full. |
| retention pond | a pond that holds water, often including a permanent pool | The retention pond stores runoff in the teaching sketch. |
| detention basin | an area temporarily holding runoff for slower release | The detention basin empties gradually in the model sequence. |
| permeable paving | paving that allows water to pass through | Permeable paving is represented with downward arrows. |
| rain garden | a planted area designed to receive runoff | The rain garden collects water from the imagined roof. |
| rainwater harvesting | collecting rainwater for a later use | Rainwater harvesting connects the roof with a storage container. |
| roof runoff | water flowing off a roof | Roof runoff enters the illustrated collection pipe. |
| water balance | an account of water entering, leaving and being stored | The water balance compares inputs with outputs and storage. |
| water demand | the amount of water required for stated uses | Water demand varies across the fictional daily chart. |
| water conservation | reducing unnecessary water use or loss | Water conservation begins with identifying avoidable waste. |
| water reuse | using water again for a specified purpose | Water reuse requires a quality suitable for the intended purpose. |
| recycled water | water treated for a further specified use | Recycled water is labelled according to its intended use. |
| water footprint | a measure of water use connected with activities or products | A water footprint needs a stated method and boundary. |
| water scarcity | insufficient available water relative to demand | Water scarcity involves supply and demand together. |
| dry spell | a period with little or no rain | The fictional dry spell lasts for several days. |
| flood warning | an official notice of expected or occurring flooding | A flood warning is a message, not a river measurement. |
| flood risk | the likelihood and consequences of flooding | Flood risk concerns both probability and possible effects. |
| flood extent | the area covered by a flood | Flood extent is shaded on the fictional map. |
| inundation | the covering of land by water | Inundation affects the low area in the classroom model. |
| high-water mark | a trace or record of a previous highest water level | The high-water mark indicates a past level in the drawing. |
| return period | a statistical expression of an event's average recurrence interval | A return period does not schedule the next flood. |
| river restoration | work aimed at improving a river's ecological condition | River restoration is evaluated against clearly stated aims. |
| riparian buffer | a vegetated strip beside a watercourse | The riparian buffer lies between the field and river. |
| hydrology | the study of water and its movement | Hydrology connects the rain, ground and river in our lesson. |
Why These Words Are Useful in Anju
A river flows through a city, but the river basin extends beyond the built-up area. Start by separating a place boundary from a water-system boundary. Next, separate the river's natural movement from a supply network that takes, stores or distributes water. Finally, identify the quality required for a particular use. These distinctions keep a water paragraph organised: location, movement, infrastructure and suitability answer different questions.
Understand the Words Before Memorising Them
Give the river a wider map
A watershed or catchment area concerns where water drains. A channel is the route carrying the flowing water. Groundwater and surface water can interact, so a simple diagram should not treat them as unrelated worlds. Trace the arrows through the picture and explain the direction of each. The city name locates the learning setting; it does not define the complete hydrological system.
Keep height, speed and volume separate
Water level describes height relative to a reference. Stream velocity describes speed. Discharge describes volume passing a point per unit time. These quantities are related but cannot replace one another in a sentence. A high water level does not provide a complete discharge measurement without additional information. Put each quantity beside its unit and ask what was actually measured before comparing two records.
Read water quality as a specified requirement
Clear-looking water is an observation about appearance. Potable water is suitable for drinking. Treated water has undergone a stated process, which may be designed for a different use. Learn to ask which treatment occurred and which requirements were checked. The vocabulary guides careful reading rather than judging quality from a photograph. The same habit helps with recycled water: name the intended use rather than assuming all uses are equivalent.
Commonly Confused Words
sewage / sewerage
Sewage is the wastewater. Sewerage is the system of sewers carrying it. One names the material and the other names infrastructure.
infiltration / percolation
Infiltration concerns water entering soil. Percolation concerns its movement through porous material. They can describe connected stages.
retention pond / detention basin
In common drainage usage, a retention pond holds water including a permanent pool. A detention basin temporarily stores runoff for slower release. Check local definitions in a specific design.
treated / potable
Treated describes a process history. Potable describes suitability for drinking. A treatment process does not automatically establish drinking suitability.
A Short Conversation
Learner: The river in the picture looks clear. Does that mean it is potable?
Teacher: Appearance alone cannot establish that. What does potable mean?
Learner: Suitable for drinking.
Teacher: Yes. Now compare water level with discharge.
Learner: One describes height; the other describes volume per unit time.
Teacher: Good. Keeping those meanings separate makes the description more useful.
Turn the Vocabulary into a Paragraph
Model paragraph for learning: Anju's Chongchon River setting helped me connect geography with water vocabulary. In a fictional diagram, water from the catchment area reaches a channel and then a labelled intake. A treatment sequence leads to a storage tank and distribution main, while wastewater follows a separate illustrated route. I would distinguish water level from discharge and treated water from potable water. Those distinctions let the paragraph explain movement and purpose without presenting the classroom network as a survey of Anju's actual services.
Choose three useful words from the paragraph. Explain why each fits its sentence. Then write a fresh paragraph using a clearly identified source, diagram or imagined setting. Keep each sentence focused on one idea so the description remains easy to follow.
Learn, Practise and Check
Choose ten words connected to one situation. Read the meanings, cover the column and explain each word in your own language. Then write a new example without copying the original. If two words feel similar, sketch their relationship or write a sentence explaining the difference. Return later and check whether you can still recognise and use them correctly.
Match a quantity to its unit
Which quantity could be given in cubic metres per second: discharge, water level or pipe length?
Answer or checking guide: Discharge. It measures water volume passing a point per unit time.
Read the fictional tank
A tank receives 30 litres and releases 20 litres, with no other change. How much does its storage increase?
Answer or checking guide: 10 litres. This is a simplified classroom water balance.
Repair the quality claim
Rewrite: 'The water is transparent, so it is suitable for drinking.'
Answer or checking guide: 'The water appears transparent; suitability for drinking requires relevant quality evidence.'
Follow a route
Use water intake, storage tank and service pipe in three connected sentences about a fictional supply diagram.
Answer or checking guide: The sentences should explain a coherent route and identify the setting as a teaching model rather than a map of current city utilities.
What If a Word Still Feels Difficult?
Find the specific gap. Can you explain the object or situation? Do you understand the difference from a nearby word? Can you use it in a grammatical sentence? Repair that step before adding more words. A small labelled diagram, a short conversation or a familiar object often makes a technical term easier to remember. Check the repair with a different example rather than repeating the same answer.
Questions About Anju Vocabulary
Does the diagram show Anju's real water network?
No. The river supplies the geographical setting; the network is a general educational illustration.
Does a return period say when the next flood will occur?
No. It expresses a statistical recurrence concept under stated assumptions, rather than a schedule for an individual event.
Why learn sewerage as well as sewage?
The distinction helps you describe the carrying system separately from the wastewater it carries.
Continue Learning with eduKate
Vocabulary Lists Control Tower helps you choose another learning setting. Education OS connects understanding, practice and checking. Browse more city guides in the World City Directory. North Korea vocabulary hub: choose another city or a connected learning route. Continue with Hyesan vocabulary and Haeju vocabulary. For a wider comparison, open Singapore City OS to connect water vocabulary with the services a city depends on.
Education OS: Explain the route in a new diagram, then check quantities, units and intended uses.
Explore the earlier North Korea city guides: Pyongyang · Kaesong · Nampo · Wonsan · Chongjin · Hamhung · Sinuiju · Rason · Sariwon · Haeju · Hyesan · Pyongsong.
Sources and Further Reading
Anju: city and Chongchon River background
USGS Water Science School: watersheds and drainage basins
USGS: Ground Water and Surface Water
Current UK official North Korea travel advice. Reference checked on 5 October 2026: the UK FCDO advises against all but essential travel. Consult current advice applicable to your nationality separately from vocabulary learning.