1. noun /ɑːm,ɑɹm/
a) The portion of the upper human appendage, from the shoulder to the wrist and sometimes including the hand.
She stood with her right arm extended and her palm forward to indicate “Stop!”
The arm and forearm are parts of the upper limb in the human body.
2. verb /ɑːm,ɑɹm/
a) To supply with a weapon or weapons.
Remember to arm an alarm system.
b) To prepare a tool or a weapon for action, to activate.
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