arm vs hand

arm and hand both are nouns.

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

arm (noun)	hand (noun)
the part of a garment that is attached at the armhole and that provides a cloth covering for the arm	physical assistance
any instrument or instrumentality used in fighting or hunting	terminal part of the forelimb in certain vertebrates (e.g. apes or kangaroos)
the part of an armchair or sofa that supports the elbow and forearm of a seated person	a rotating pointer on the face of a timepiece
any projection that is thought to resemble a human arm	the (prehensile) extremity of the superior limb
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	ability
a division of some larger or more complex organization	one of two sides of an issue
	something written by hand
	a round of applause to signify approval
	the cards held in a card game by a given player at any given time
	a position given by its location to the side of an object
	a hired laborer on a farm or ranch
	a card player in a game of bridge
	a member of the crew of a ship
	a unit of length equal to 4 inches; used in measuring horses

arm (verb)	hand (verb)
prepare oneself for a military confrontation	guide or conduct or usher somewhere
supply with arms	place into the hands or custody of