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United States Air Force: Meaning and Definition of

Unit'ed States' Air' Force"

Pronunciation: [key]
  1. 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. Abbr.: USAF
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
United States United States Air Force Academy
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