Definition of United states air force

Babylon English Dictionary
USAF, aviation branch of the American military
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United states air force Definition from Language, Idioms & Slang Dictionaries & Glossaries
WordNet 2.0

Noun
1. the airforce of the United States of America; defends the United States through control and exploitation of air and space
(synonym) U. S. Air Force, US Air Force, USAF
(hypernym) air force, airforce
(part-holonym) Department of Defense, Defense Department, United States Department of Defense, Defense, DoD
(part-meronym) Air Force Research Laboratory, AFRL