The Simple English Wikipedia has an article on: Air force Other spellings airforce Pronunciation IPA (key): /ˈɛə(r) ˌfɔː(r)s/ Audio (US)(file) Noun Singular air force Plural air forces (countable) (military) An air force is the branch of a country's military which fights in the air. Related words army navyWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads