arm

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

any projection that is thought to resemble a human arm

the arm of the record player

an arm of the sea

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

any instrument or instrumentality used in fighting or hunting

he was licensed to carry a weapon

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

a division of some larger or more complex organization

a branch of Congress

botany is a branch of biology

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

supply with arms

The U.S. armed the freedom fighters in Afghanistan