hand vs metacarpus

hand and metacarpus both are nouns.

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

hand (noun)	metacarpus (noun)
physical assistance	the part of the hand between the carpus and phalanges
terminal part of the forelimb in certain vertebrates (e.g. apes or kangaroos)
a rotating pointer on the face of a timepiece
the (prehensile) extremity of the superior limb
ability
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

hand (verb)	metacarpus (verb)
guide or conduct or usher somewhere
place into the hands or custody of