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English definition of “arm”

arm

verb     /ɑːm/ US  /ɑːrm/
[I or T] to provide yourself or others with a weapon or weapons: Nobody knows who is arming the terrorists. I armed myself with a baseball bat and went to investigate the noise. They are currently arming for war. → Opposite disarmProviding weapons or taking weapons away C2 [T] to provide yourself or others with equipment or knowledge in order to complete a particular task: She armed herself for the interview by finding out all she could about the company in advance. I went to the meeting armed with the relevant facts and figures.Giving, providing and supplying
(Definition of arm verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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