Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun air_defense
1 sense of air defense
Sense 1
air defense -- (defensive measures designed to destroy attacking enemy aircraft or missiles or to nullify their effectiveness)
=> defense, defence, defensive measure -- ((military) military action or resources protecting a country against potential enemies; "they died in the defense of Stalingrad"; "they were developed for the defense program")