fashion vs tailor

fashion and tailor both are nouns.

Word	Noun	Adjective	Verb	Adverb
fashion	Yes	No	Yes	No
tailor	Yes	No	Yes	No

As verbs, tailor is a hyponym of fashion; that is, tailor is a word with a more specific, narrower meaning than fashion:

Other hyponyms of fashion include tie, craft, sew, tailor-make.

fashion (noun)	tailor (noun)
characteristic or habitual practice	a person whose occupation is making and altering garments
consumer goods (especially clothing) in the current mode
how something is done or how it happens
the latest and most admired style in clothes and cosmetics and behavior

fashion (verb)	tailor (verb)
make out of components (often in an improvising manner)	adjust to a specific need or market
	create (clothes) with cloth
	style and tailor in a certain fashion