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# tank

«tank» in Mova's school dictionary: **a big container that holds water, fuel, oil or gas** — its meaning for a pupil, its sense in the lessons and examples, with 5 sentences of Mova's corpora that use it.

### part of speech

noun (tank, tanks); verb (tank — fail badly, slang)

### meaning for a pupil

1) A tank is a big container that holds water, fuel, oil or gas. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#m1)

2) A fish tank is a glass box for fish. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#m2)

3) A tank is also a big heavy army vehicle with a gun, that moves on metal tracks. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#m3)

4) A think tank is a group of people who think up ideas. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#m4)

5) A tank can also be a pool of water in a hot country, where people and animals bathe and drink. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#m5)

### sense in the lessons

In school maths: a container with a volume or capacity — litres in a tank, filling or emptying at a rate; fish in a tank; volume of a box-shaped tank = length × width × height. In science: a water tank, a fuel tank; capacity and volume. In everyday life: filling the car's tank with petrol, a hot-water tank, a tank top (a shirt with no sleeves). Phrases: «a full tank», «fish tank», «petrol tank», «water tank».

### examples

- A tank holds 200 litres of water. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#x1)
- A pipe fills the tank with 10 litres a minute. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#x2)
- There are 15 fish in the tank. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#x3)
- The car's tank holds 40 litres of petrol. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#x4)
- We clean the fish tank every week. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#x5)
- The tank is half full. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#x6)
- Farms in Australia collect rainwater in tanks. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#x7)
- The old army tank is in the museum. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#x8)
- He bathed himself and his horse in the tank, and then sat down under a tree. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/#x9)

### note

Countable: «a tank». Maths: gives a capacity or holds things counted. Trap: «how long to fill» is capacity ÷ rate; when water also flows out, use the difference of the rates; «half full» means half the capacity.

### In the corpora

- [Sea tanks are made with special salt mixed into clean water and tested every day, and big filters clean the water like kidneys.](https://md.mova.elamur.ai/free/en/corpora/school/biology/90-aquarium-the-coral-reef-tank/15/)
- [Goldfish quickly learn that a person near the tank means food is coming, and they gather at the front.](https://md.mova.elamur.ai/free/en/corpora/school/biology/152-goldfish-memory/6/)
- [Waiting while they grow is called cycling the tank.](https://md.mova.elamur.ai/free/en/corpora/school/biology/203-the-fish-tank-water-gills-heaters-and-the-right-neighbours/3/)
- [Many people think tanks are too small for such far-swimming animals, and some countries have banned dolphin shows.](https://md.mova.elamur.ai/free/en/corpora/school/biology/235-animal-minds-dolphins-names-orca-grandmothers-and-whale-songs/15/)
- [Breathing helium from a gas tank is dangerous: it can harm the lungs and leaves the body without oxygen.](https://md.mova.elamur.ai/free/en/corpora/school/chemistry/2-elements-and-the-periodic-table/13/)

### Trees and pragmatics

[Every meaning and example of «tank» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/T/tank/), each sentence with its dependency tree and frames.