arm

How to sign: an administrative division of some larger or more complex organization
"a branch of Congress";

Similiar / Same: branch, subdivision

Categories: division

Within this category: executive branch, judicial branch, legislative branch, post office

arm

How to sign: 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

Categories: limb

arm

How to sign: prepare oneself for a military confrontation
"The U.S. is girding for a conflict in the Middle East"; "troops are building up on the Iraqui border";

Similiar / Same: gird, build up, fortify

Within this category: forearm, rearm

arm

How to sign: the part of a garment that is attached at armhole and provides a cloth covering for the arm

Similiar / Same: sleeve

Categories: cloth covering

Within this category: dolman sleeve, long sleeve, raglan sleeve, shirtsleeve, short sleeve

arm

How to sign: any instrument or instrumentality used in fighting or hunting
"he was licensed to carry a weapon";

Similiar / Same: weapon, weapon system

Categories: instrument

Within this category: bow, bow and arrow, brass knucks, fire ship, flamethrower, Greek fire, gun, knife, pike, projectile, slasher, sling, spear, stun gun, sword, tomahawk, weapon of mass destruction