ARM

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

Any projection that is thought to resemble a human arm

Example: "The arm of the record player"

Any instrument or instrumentality used in fighting or hunting

Example: "He was licensed to carry a weapon"

The part of an armchair or sofa that supports the elbow and forearm of a seated person

A division of some larger or more complex organization

Example: "A branch of congress"

The part of a garment that is attached at the armhole and that provides a cloth covering for the arm