shelf vs market

shelf and market both are nouns.

Word	Noun	Adjective	Verb	Adverb
shelf	Yes	No	No	No
market	Yes	No	Yes	No

shelf (noun)	market (noun)
a support that consists of a horizontal surface for holding objects	the world of commercial activity where goods and services are bought and sold
a projecting ridge on a mountain or submerged under water	a marketplace where groceries are sold
	an area in a town where a public mercantile establishment is set up
	the customers for a particular product or service
	the securities markets in the aggregate

shelf (verb)	market (verb)
	make commercial
	engage in the commercial promotion, sale, or distribution of
	deal in a market
	buy household supplies