coin collector vs numismatist

coin collector and numismatist both are nouns.

Word	Noun	Adjective	Verb	Adverb
coin collector	Yes	No	No	No
numismatist	Yes	No	No	No

As nouns, coin collector and numismatist are synonyms defined as:

coin collector and numismatist: a collector and student of money (and coins in particular)

Other synonyms of coin collector include numismatologist.

coin collector (noun)	numismatist (noun)
a collector and student of money (and coins in particular)	a collector and student of money (and coins in particular)