vapor

word

Definition

Vapor is a substance in the form of gas that is usually made from a liquid or solid by heating, like water that turns into steam.

Usage & Nuances

Used mostly in scientific, technical, or formal contexts. Often refers to water vapor, but can also mean the gas from other substances. In casual speech, 'steam' is more common for hot water vapor. 'Vapor' can also mean mist, but this is less frequent.

Example Sentences

Boiling water produces vapor.

basic

You can see vapor coming from your breath on a cold day.

basic

Clouds are made of tiny drops of water and vapor.

basic

After a hot shower, the mirror is covered in vapor.

natural

The factory released a white vapor into the air.

natural

She used a humidifier to add vapor to the dry room.

natural