WordWeb Online

1. 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. Any projection that is thought to resemble a human arm
   "the arm of the record player"; "an arm of the sea";
   - branch, limb
    
3. Any instrument or instrumentality used in fighting or hunting
   - weapon, weapon system
    
4. The part of an armchair or sofa that supports the elbow and forearm of a seated person
    
5. A division of some larger or more complex organization
   - branch, subdivision
    
6. The part of a garment that is attached at the armhole and that provides a cloth covering for the arm
   - sleeve

1. Prepare oneself for a military confrontation
   "troops are arming on the Iraqi border";
   - build up, fortify, gird
    
2. Supply with arms
   "The U.S. armed the freedom fighters in Afghanistan"

Derived forms: arms, armed, arming

Type of: armrest, cloth covering, division, furnish, instrument, limb, offer, projection, provide, render, supply

Part of: armchair, arms, body, garment, homo, human, human being, implements of war, man, munition, organic structure, weaponry, weapons system

Encyclopedia: Arm, Alice