arm

any instrument or instrumentality used in fighting or hunting

any projection that is thought to resemble a human arm

“the arm of the record player”

a division of some larger or more complex organization

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

prepare oneself for a military confrontation

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

supply with arms

“The U.S. armed the freedom fighters in Afghanistan”

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