Open English Wordnet
Nouns
(n)arma 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 (n)arm, branch, limbany projection that is thought to resemble a human arm“the arm of the record player”,
“an arm of the sea”,
“a branch of the sewer” (n)weapon, arm, weapon systemany instrument or instrumentality used in fighting or hunting“he was licensed to carry a weapon” (n)armthe part of an armchair or sofa that supports the elbow and forearm of a seated person (n)branch, subdivision, arma division of some larger or more complex organization“a branch of Congress”,
“botany is a branch of biology”,
“the Germanic branch of Indo-European languages” (n)sleeve, armthe part of a garment that is attached at the armhole and that provides a cloth covering for the arm Verbs
(v)arm, build up, fortify, girdprepare 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” (v)armsupply with arms“The U.S. armed the freedom fighters in Afghanistan” 