rib vs rib roast

rib and rib roast both are nouns.

Word	Noun	Adjective	Verb	Adverb
rib	Yes	No	Yes	No
rib roast	Yes	No	No	No

rib (noun)	rib roast (noun)
support resembling the rib of an animal	a cut of meat (beef or venison) including more than one rib and the meat located along the outside of the ribs
a projecting molding on the underside of a vault or ceiling; may be ornamental or structural
any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates)
a riblike supporting or strengthening part of an animal or plant
a teasing remark
cut of meat including one or more ribs

rib (verb)	rib roast (verb)
subject to laughter or ridicule
form vertical ribs by knitting