fashion plate vs beau

fashion plate and beau both are nouns.

Word	Noun	Adjective	Verb	Adverb
fashion plate	Yes	No	No	No
beau	Yes	No	No	No

As nouns, fashion plate and beau are synonyms defined as:

fashion plate and beau: a man who is much concerned with his dress and appearance

Other synonyms of fashion plate include clotheshorse, dandy, dude, fop, gallant, sheik, swell.

fashion plate (noun)	beau (noun)
a plate illustrating the latest fashion in dress	a man who is the lover of a man or woman
a man who is much concerned with his dress and appearance	a man who is much concerned with his dress and appearance