gas
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 →
2) A gas that burns and is used for cooking and heating: "a gas stove". tree →
3) (American, Canadian) Gasoline, the fuel for cars; British, Irish, Australian and NZ say "petrol". tree →
4) Air in the stomach. tree →
5) Gas can also be burned to make light, as in old street lamps. tree →
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 →
- When water boils, it turns into a gas. tree →
- We cook on a gas stove. tree →
- If you smell gas, leave the house. tree →
- Dad filled the car with gas. tree →
- Plants take in a gas called carbon dioxide. tree →
- A balloon is filled with helium gas. tree →
- Gases spread out to fill a container. tree →
- The name glittered in gas-jets over the entrance. tree →
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.
- Fizzy drinks are full of carbon dioxide gas, which collects in the stomach and comes back up as a burp.
- The leftover from the factory is oxygen, the gas we breathe.
- That is a living fungus at work, eating sugar and breathing out gas bubbles.
- Think of a fizzy drink: shake it and the gas wants out.
Trees and pragmatics
Every meaning and example of «gas» parsed by Mova, each sentence with its dependency tree and frames.