Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

English definition of “air”

air

noun     /r/
GAS [U] A2 the mixture of gases around the Earth that we breathe: air pollution He went outside to get some fresh air (= clean, cool air).Specific chemicals, chemical compounds and gasesSubstances and structures in the bodyTypes of chemical
the air B2 the space above and around things: He fired his gun into the air.The Earth and outer space - general words
TRAVEL [U] A2 travel in an aircraft: I like travelling by air. air safetyAviationTravelling by aircraftMovement through the air
QUALITY [no plural] a particular appearance or quality: He has an air of authority.Seeming and purporting to beFaking and pretending
be on air to be broadcasting on television or radioBroadcasting in general
→ See also a breath of fresh air, mid-air, clear the air, disappear/vanish into thin air, be up in the air
(Definition of air noun from the Cambridge Learner's Dictionary © Cambridge University Press)

Definitions of “air” in other dictionaries

Word of the Day

exercise

physical activity that you do to make your body strong and healthy

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More