leakage
C1Formal / Technical / Neutral
Definition
Meaning
The escape or accidental loss of a substance (like a liquid or gas) or information from its intended container or secure state.
Any unintended or undesirable escape, loss, or flow; can refer to abstract concepts like data, current, influence, or resources.
Linguistics
Semantic Notes
The word typically implies a flaw, failure, or weakness in a containing system. It often has a negative connotation of waste, danger, or breach of security. The term is often used in technical and bureaucratic contexts.
Dialectal Variation
British vs American Usage
Differences
No significant difference in meaning or usage. Spelling is consistent. 'Leakage' may appear more frequently in certain technical or regulatory British English texts.
Connotations
Similar negative connotations of loss, inefficiency, or failure in both varieties.
Frequency
Equally common in both varieties. Slightly more formal than the simpler noun 'leak'.
Vocabulary
Collocations
Grammar
Valency Patterns
leakage of + [substance/information] (e.g., leakage of confidential data)leakage from + [source] (e.g., leakage from the main pipe)leakage into + [environment] (e.g., leakage into the groundwater)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “plug the leakage (stop a loss, especially financial)”
- “stem the leakage (stop something from escaping)”
Usage
Context Usage
Business
Refers to financial losses, loss of customers, or competitive information. 'The budget review aimed to identify areas of revenue leakage.'
Academic
Used in engineering, environmental science, and computer science to describe unwanted transfer. 'The study measured the chemical leakage from the landfill site.'
Everyday
Commonly used for problems in the home. 'We called a plumber about the water leakage under the sink.'
Technical
Precise term in electronics (current leakage), hydraulics, and data security. 'The capacitor's dielectric was faulty, causing significant current leakage.'
Examples
By Part of Speech
verb
British English
- The old pipes are beginning to leak quite badly.
- Officials fear the report could leak to the press before the announcement.
American English
- The roof leaks every time it rains heavily.
- Details of the merger leaked online last night.
adverb
British English
- The fuel dripped leakily from the fractured hose.
- (Rarely used; 'in a leaky manner' is more common in technical descriptions)
American English
- The old barrel seeped leakily onto the warehouse floor.
- (Rare; typically replaced with phrases like 'in a leaking fashion')
adjective
British English
- We need to replace the leaky washer in the tap.
- The investigation focused on the leaky bureaucracy.
American English
- They installed a new liner in the leaky pond.
- The company has a leaky internal communication system.
Examples
By CEFR Level
- There is a water leakage in the kitchen.
- The leakage made the floor wet.
- The gas leakage was very dangerous, so we left the house.
- Engineers fixed the leakage in the water main.
- New regulations aim to reduce data leakage from online platforms.
- A slow leakage of coolant caused the car's engine to overheat.
- The audit revealed a significant financial leakage due to inefficient procurement processes.
- Researchers are developing membranes to minimise electrolyte leakage in advanced batteries.
Learning
Memory Aids
Mnemonic
Think of a LEAKy bAGE: a leaky bag (bage) allows its contents to escape, causing LEAKage.
Conceptual Metaphor
CONTAINERS HOLD VALUABLES; A WEAK CONTAINER CAUSES LOSS. Information, money, and fluids are valuable contents; leakage is a failure of the 'container' (e.g., a pipe, a budget, a database).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid using 'утечка' for all contexts; in English, 'leakage' is more formal/technical. A simple 'leak' is often more natural in everyday speech (e.g., 'a gas leak', not 'a gas leakage').
- The Russian 'протечка' is typically for liquids; English 'leakage' is broader (data, gas, money).
Common Mistakes
- Using 'leakage' as a verb (correct: 'to leak', not 'to leakage').
- Overusing 'leakage' where 'leak' suffices (e.g., 'There's a leak in the roof' is more natural than 'There's a leakage in the roof' in casual speech).
Practice
Quiz
In which context is the use of 'leakage' LEAST appropriate?
FAQ
Frequently Asked Questions
No. While commonly used for liquids and gases, 'leakage' is widely applied to abstract things like data, information, electricity, money, and even influence (e.g., 'brain drain' is a form of talent leakage).
'A leak' often refers to a specific instance, hole, or point of escape (e.g., 'We found the leak'). 'Leakage' is more often an uncountable noun referring to the process, occurrence, or general fact of leaking (e.g., 'Prevent leakage of information'). In everyday speech, 'leak' is more common.
Extremely rarely. Its core meaning involves an unintentional and undesirable loss. In specialised contexts like some types of marketing ('spillover effect'), it might be neutral, but it generally retains a negative connotation.
It is neutral to formal. In casual conversation, people are more likely to say 'There's a leak' rather than 'There's a leakage'. It is standard in technical, business, and academic writing.