Definition of USAF abbreviation from the Oxford Advanced Learner's Dictionary

 

USAF

 abbreviation
abbreviation
BrE BrE//ˌjuː es eɪ ˈef//
 
; NAmE NAmE//ˌjuː es eɪ ˈef//
 
The air force
 
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United States Air Force See related entries: The air force