hand vs arm

hand and arm both are nouns.

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

hand (noun)	arm (noun)
physical assistance	the part of a garment that is attached at the armhole and that provides a cloth covering for the arm
terminal part of the forelimb in certain vertebrates (e.g. apes or kangaroos)	any instrument or instrumentality used in fighting or hunting
a rotating pointer on the face of a timepiece	the part of an armchair or sofa that supports the elbow and forearm of a seated person
the (prehensile) extremity of the superior limb	any projection that is thought to resemble a human arm
ability	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
one of two sides of an issue	a division of some larger or more complex organization
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

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