Pronunciation

/vəˈpɔː(r)/

Definitions

• Noun: A gas or vapor that is formed when a substance changes from a liquid or solid state to a gaseous state, often at a relatively low temperature. Oxford
• Verb: To change from a liquid to a gaseous state by evaporation or boiling; to become a vapor. Cambridge

Phrases

• “Water vapor” refers to water in its gaseous form.
• “Steam” is the visible vapor resulting from boiling water.
• “Vaporize” or “evaporate” are actions of turning from a liquid to a vapor.

Example Sentences

• Noun: “The air was filled with the scent of freshly baked cookies, wafting through the kitchen as the steam rose from the hot plate.”
• Verb: “When the pot of water reached boiling point, the water vapour started to fill the room.”
• Action: “The plant’s transpiration process converts water into water vapor, which helps regulate its temperature.”

Synonyms

• Steam
• Mist
• Condensation (the reverse process)
• Evaporation
• Boiling point
• Fumes (less common, usually referring to noxious fumes)