fish tank: meaning, definition, pronunciation and examples
B1Informal, but also technical within the hobbyist/zoological context.
Quick answer
What does “fish tank” mean?
A container, typically made of glass or acrylic, filled with water in which fish and other aquatic creatures are kept, usually as pets or for display.
Audio
Pronunciation
Definition
Meaning and Definition
A container, typically made of glass or acrylic, filled with water in which fish and other aquatic creatures are kept, usually as pets or for display.
Any small, controlled aquatic environment; can be used metaphorically to describe a confined or limited situation where individuals or systems are observed.
Dialectal Variation
British vs American Usage
Differences
No significant difference in the core term. 'Aquarium' is a more formal synonym used in both varieties. British English might be slightly more prone to use the brand name 'Aquarium' generically.
Connotations
Neutral in both. Slightly more technical/childish connotations than 'aquarium'.
Frequency
Equally common in both varieties for domestic contexts.
Grammar
How to Use “fish tank” in a Sentence
[subject] cleaned the fish tank.We need to buy a [adjective] fish tank.The fish tank [verb: leaked, broke, cracked].Vocabulary
Collocations
Examples
Examples of “fish tank” in a Sentence
verb
British English
- We need to fish-tank that old cabinet.
American English
- He's planning to fish-tank the entire wall unit.
adverb
British English
- N/A
American English
- N/A
adjective
British English
- She has a fish-tank cleaning service.
American English
- He bought a new fish-tank stand.
Usage
Meaning in Context
Business
Rare. Might appear in retail (pet shop supplies) or manufacturing contexts.
Academic
Rare outside of biology/ecology experiments as a controlled environment.
Everyday
Common, referring to a household pet enclosure.
Technical
Used in zoology, aquaculture, and pet hobbyist communities.
Vocabulary
Synonyms of “fish tank”
Vocabulary
Antonyms of “fish tank”
Watch out
Common Mistakes When Using “fish tank”
- Incorrect article: 'He has fish tank.' (Missing 'a/the')
- Spelling: 'fishtank' (acceptable as a compound, but 'fish tank' is standard).
- Using 'fish tank' for very large public aquariums.
FAQ
Frequently Asked Questions
It is most commonly written as two separate words ('fish tank'), though the hyphenated form 'fish-tank' (especially as a modifier) and the closed compound 'fishtank' are also seen.
In everyday use, they are synonyms. However, 'aquarium' can sound slightly more formal or technical and is the preferred term for large public installations. 'Fish tank' strongly implies a smaller, domestic setup.
Yes, it can be used for tanks containing other aquatic animals like turtles, amphibians, or shrimp, though terms like 'terrarium' (for land creatures) or 'vivarium' are more precise for non-fish.
Yes. Example: 'The house had three fish tanks in different rooms.'
A container, typically made of glass or acrylic, filled with water in which fish and other aquatic creatures are kept, usually as pets or for display.
Fish tank is usually informal, but also technical within the hobbyist/zoological context. in register.
Fish tank: in British English it is pronounced /ˈfɪʃ ˌtæŋk/, and in American English it is pronounced /ˈfɪʃ ˌtæŋk/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[Metaphorical] It's like a fish tank in here – so crowded and everyone's watching everyone.”
Learning
Memory Aids
Mnemonic
Think of TANK as a military vehicle – it's a heavy, armoured container. A FISH TANK is a (usually glass) container for fish.
Conceptual Metaphor
CONTAINER FOR LIFE; A CONFINED, OBSERVABLE WORLD.
Practice
Quiz
What is the most common, everyday synonym for 'fish tank'?