market vs marketplace

market and marketplace both are nouns.

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

As nouns, market and marketplace are synonyms defined as:

market and marketplace: the world of commercial activity where goods and services are bought and sold

Other synonyms of market include market place.

As nouns, marketplace is a hypernym of market; that is, marketplace is a word with a broader meaning than market:

market: a marketplace where groceries are sold
marketplace: an area in a town where a public mercantile establishment is set up

Other hypernyms of market include market, market place, mart.

As nouns, market and marketplace are synonyms defined as:

market and marketplace: an area in a town where a public mercantile establishment is set up

Other synonyms of market include market place, mart.

market (noun)	marketplace (noun)
the world of commercial activity where goods and services are bought and sold	the world of commercial activity where goods and services are bought and sold
a marketplace where groceries are sold	an area in a town where a public mercantile establishment is set up
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

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