matchmaker vs marriage broker

matchmaker and marriage broker both are nouns.

Word	Noun	Adjective	Verb	Adverb
matchmaker	Yes	No	No	No
marriage broker	Yes	No	No	No

As nouns, matchmaker and marriage broker are synonyms defined as:

matchmaker and marriage broker: someone who arranges (or tries to arrange) marriages for others

Other synonyms of matchmaker include matcher.

matchmaker (noun)	marriage broker (noun)
someone who arranges (or tries to arrange) marriages for others	someone who arranges (or tries to arrange) marriages for others