market place vs mart

market place and mart both are nouns.

Word	Noun	Adjective	Verb	Adverb
market place	Yes	No	No	No
mart	Yes	No	No	No

As nouns, market place and mart are synonyms defined as:

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

Other synonyms of market place include market, marketplace.

market place (noun)	mart (noun)
the world of commercial activity where goods and services are bought and 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