marriage mart vs marriage brokerage

marriage mart and marriage brokerage both are nouns.

Word	Noun	Adjective	Verb	Adverb
marriage mart	Yes	No	No	No
marriage brokerage	Yes	No	No	No

As nouns, marriage mart and marriage brokerage are synonyms defined as:

marriage mart and marriage brokerage: a business that arranges marriage contracts

marriage mart (noun)	marriage brokerage (noun)
a business that arranges marriage contracts	a business that arranges marriage contracts