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# gas

«gas» in Mova's school dictionary: **A substance like air that has no fixed shape and spreads…** — 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 (gas, gases or gasses); verb (gas, gasses, gassed, gassing — rare)

### meaning for a pupil

1) A substance like air that has no fixed shape and spreads out to fill any space. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#m1)

2) A gas that burns and is used for cooking and heating: "a gas stove". [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#m2)

3) (American, Canadian) Gasoline, the fuel for cars; British, Irish, Australian and NZ say "petrol". [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#m3)

4) Air in the stomach. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#m4)

5) Gas can also be burned to make light, as in old street lamps. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#m5)

### sense in the lessons

In science, matter has three main states: solid, liquid and gas; water becomes a gas (water vapour) when it boils; air is a mixture of gases (nitrogen, oxygen, carbon dioxide). In safety: natural gas smells like rotten eggs (a smell is added); if you smell gas, don't touch switches, get out and tell an adult. Phrases: gas stove, gas station, gas leak, natural gas, step on the gas (hurry).

### examples

- Air is a gas. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#x1)
- When water boils, it turns into a gas. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#x2)
- We cook on a gas stove. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#x3)
- If you smell gas, leave the house. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#x4)
- Dad filled the car with gas. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#x5)
- Plants take in a gas called carbon dioxide. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#x6)
- A balloon is filled with helium gas. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#x7)
- Gases spread out to fill a container. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#x8)
- The name glittered in gas-jets over the entrance. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/G/gas/#x9)

### note

Plural "gases". A gas has no shape or fixed size; a liquid has a fixed size but no shape; a solid has both. In the US "gas" for cars = British "petrol". Many gases are invisible.

### In the corpora

- [Energy bills pay for gas and electricity, and their prices rise and fall with world events.](https://md.mova.elamur.ai/free/en/corpora/school/adult-life/6-paying-for-a-home-and-the-bills/13/)
- [Fizzy drinks are full of carbon dioxide gas, which collects in the stomach and comes back up as a burp.](https://md.mova.elamur.ai/free/en/corpora/school/biology/67-digestion-the-journey-of-a-sandwich/15/)
- [The leftover from the factory is oxygen, the gas we breathe.](https://md.mova.elamur.ai/free/en/corpora/school/biology/251-plants-deeper-leaves-and-sunlight-how-a-tree-is-made-of-air/4/)
- [That is a living fungus at work, eating sugar and breathing out gas bubbles.](https://md.mova.elamur.ai/free/en/corpora/school/biology/299-the-big-biology-quiz-part-2-plants-the-body-and-microbes/2/)
- [Think of a fizzy drink: shake it and the gas wants out.](https://md.mova.elamur.ai/free/en/corpora/school/biology/364-the-body-s-rough-side-burps-farts-snot-sneezes-hiccups-and-poo/1/)

### Trees and pragmatics

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