Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “airspeed”


noun [U]     /ˈeə.spiːd/ US  /ˈer-/
the speed of an aircraft , measured against the speed of the air through which it is moving Speed of motionAviationTravelling by aircraftMovement through the air
(Definition of airspeed noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of airspeed

Translations of “airspeed”

Word of the Day

best man

a male friend or relation of the bridegroom who stands with him and helps him during a marriage ceremony

Word of the Day


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