drainage
B2Technical/Neutral
Definition
Meaning
The system or process of removing water or other liquids from an area.
The natural or artificial removal of surface and subsurface water from a given area. In medicine, it refers to the withdrawal of fluids from a wound or body cavity.
Linguistics
Semantic Notes
Primarily a mass noun. Refers to both the physical infrastructure (pipes, ditches) and the process itself. Often used in contexts of land management, civil engineering, agriculture, and medicine.
Dialectal Variation
British vs American Usage
Differences
No major lexical differences. However, 'drainage' is more commonly used in UK English in everyday contexts like garden drainage. In US English, 'drainage system' or specific terms like 'culvert', 'ditch', or 'storm sewer' might be used more frequently in municipal contexts.
Connotations
UK: Strongly associated with land management, farming, and property maintenance (e.g., damp problems). US: Often associated with civil engineering, urban infrastructure, and land development.
Frequency
Similar frequency in both dialects. Slightly higher in UK English in everyday property-related discourse.
Vocabulary
Collocations
Grammar
Valency Patterns
The [area/field/city] has [good/poor] drainage.The drainage of [the land/the wound/the site] is essential.to improve/enhance/block drainageVocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Go down the drain (informal, meaning to be wasted or lost)”
- “Laugh like a drain (UK, meaning to laugh very loudly)”
Usage
Context Usage
Business
Referring to capital or resources being wasted: 'The investment was a total drainage of funds.'
Academic
Describing processes in geography, geology, or civil engineering: 'The study focused on the drainage patterns of the catchment area.'
Everyday
Talking about home or garden issues: 'We need to fix the drainage in the backyard; it's always soggy.'
Technical
In medicine: 'Post-operative drainage of the hematoma was required.' In agriculture: 'Subsurface drainage is crucial for crop yield.'
Examples
By Part of Speech
verb
British English
- The contractors will drain the land before building begins.
- The wound needs to drain properly to heal.
American English
- They drained the swamp to create new farmland.
- The sink is finally draining after I cleared the clog.
adjective
British English
- The drainage pipe was blocked with leaves.
- We need a drainage consultant for the new housing estate.
American English
- The drainage ditch runs along the property line.
- Check the drainage grate for debris after the storm.
Examples
By CEFR Level
- The plant died because the pot had no drainage hole.
- After the rain, the field had poor drainage.
- The city is improving its drainage system to prevent future floods.
- Good soil drainage is important for growing these vegetables.
- The engineer's report highlighted inadequate drainage as the cause of the structural damage.
- Agricultural drainage can sometimes lead to the salinization of soil.
- The controversial land reclamation project altered the natural drainage patterns of the entire estuary.
- Percutaneous drainage of the abscess was performed under ultrasound guidance.
Learning
Memory Aids
Mnemonic
Imagine a RAIN age – an age where removing RAINwater (drain-age) is the most important technology.
Conceptual Metaphor
RESOURCES ARE LIQUIDS / WASTE IS A LIQUID: 'The constant paperwork was a drainage on her time and energy.'
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid directly translating 'дренаж' for all contexts. In English, 'drainage' is broader. Russian 'дренаж' often implies a constructed system, while English 'drainage' can be natural. In medical contexts, 'drainage' is correct, but in computing or finance, 'drain' is metaphorical ('brain drain', 'resource drain').
Common Mistakes
- Using as a countable noun incorrectly (e.g., 'a drainage' – usually uncountable). Confusing 'drainage' (system/process) with 'drain' (the individual pipe or outlet). Using 'drainage' to mean the liquid being removed (that is 'drainage water' or 'runoff').
Practice
Quiz
In which context is the word 'drainage' LEAST likely to be used?
FAQ
Frequently Asked Questions
Primarily uncountable. You have 'good drainage', 'poor drainage'. It can be used countably in specific technical phrases like 'a drainage system' or 'drainages' in medical contexts referring to multiple drain tubes.
'Drainage' is the general removal of water (rainwater, groundwater). 'Sewerage' (or 'sewage system') specifically refers to the system for removing waste water and sewage from buildings. Drainage systems often feed into sewerage systems.
No. The related verb is 'to drain'. 'Drainage' is only a noun. You drain a swamp to improve its drainage.
Yes. 'Drainage' is the system or process. 'Runoff' is the actual water that flows off the surface (the result of drainage). You manage drainage to control runoff.
Explore