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action

noun [U] (WAR)
 
 
/ˈæk.ʃən/

Definition

C2 fighting in a war: Her younger son was killed in action. He was reported missing in action. He saw action (= fought as a soldier) in the trenches.Fighting
(Definition of action noun (WAR) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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