Synonyms of arm

1. arm, limb: usage: a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb
2. arm, branch, limb, projection: usage: any projection that is thought to resemble a human arm; "the arm of the record player"; "an arm of the sea"; "a branch of the sewer"
3. weapon, arm, weapon system, instrument: usage: any instrument or instrumentality used in fighting or hunting; "he was licensed to carry a weapon"
4. arm, armrest: usage: the part of an armchair or sofa that supports the elbow and forearm of a seated person
5. branch, subdivision, arm, division: usage: a division of some larger or more complex organization; "a branch of Congress"; "botany is a branch of biology"; "the Germanic branch of Indo-European languages"
6. sleeve, arm, cloth covering: usage: the part of a garment that is attached at the armhole and that provides a cloth covering for the arm

1. arm, build up, fortify, gird: usage: prepare oneself for a military confrontation; "The U.S. is girding for a conflict in the Middle East"; "troops are building up on the Iraqi border"
2. arm, supply, provide, render, furnish: usage: supply with arms; "The U.S. armed the freedom fighters in Afghanistan"