roast vs guy

roast and guy both are nouns.

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

As verbs, roast and guy are synonyms defined as:

Other synonyms of roast include blackguard, jest at, laugh at, make fun, poke fun, rib, ridicule.

roast (noun)	guy (noun)
negative criticism	a cable, wire, or rope that is used to brace something (especially a tent)
a piece of meat roasted or for roasting and of a size for slicing into more than one portion	an informal term for a youth or man

roast (adjective)	guy (adjective)
(meat) cooked by dry heat in an oven

roast (verb)	guy (verb)
cook with dry heat, usually in an oven	steady or support with a guy wire or cable
subject to laughter or ridicule	subject to laughter or ridicule