exchanger vs money changer

exchanger and money changer both are nouns.

Word	Noun	Adjective	Verb	Adverb
exchanger	Yes	No	No	No
money changer	Yes	No	No	No

As nouns, exchanger and money changer are synonyms defined as:

exchanger and money changer: one whose business is to exchange the money of one country for that of another country

exchanger (noun)	money changer (noun)
one whose business is to exchange the money of one country for that of another country	one whose business is to exchange the money of one country for that of another country