U.S.A.F.

or USAF


United States Air Force.

Definition for usaf (2 of 2)

United States Air Force

noun

the permanent or regular military air force of the United States, established in 1947 as a separate service under the authority of the Department of Defense: a branch of the U.S. Army before 1947. Abbreviation: USAF
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for usaf

USAF

abbreviation for

United States Air Force
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012