body vs arm

body and arm both are nouns.

Word	Noun	Adjective	Verb	Adverb
body	Yes	No	Yes	No
arm	Yes	No	Yes	No

body (noun)	arm (noun)
the external structure of a vehicle	the part of a garment that is attached at the armhole and that provides a cloth covering for the arm
a resonating chamber in a musical instrument (as the body of a violin)	any instrument or instrumentality used in fighting or hunting
the property of holding together and retaining its shape	the part of an armchair or sofa that supports the elbow and forearm of a seated person
the main mass of a thing	any projection that is thought to resemble a human arm
the entire physical structure of an organism (an animal, plant, or human being)	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
the body excluding the head and neck and limbs	a division of some larger or more complex organization
a natural object consisting of a dead animal or person
the central message of a communication
a group of persons associated by some common tie or occupation and regarded as an entity
a collection of particulars considered as a system
an individual 3-dimensional object that has mass and that is distinguishable from other objects

body (verb)	arm (verb)
invest with or as with a body; give body to	prepare oneself for a military confrontation
	supply with arms