coin collecting vs coin collection

coin collecting and coin collection both are nouns.

Word	Noun	Adjective	Verb	Adverb
coin collecting	Yes	No	No	No
coin collection	Yes	No	No	No

As nouns, coin collecting and coin collection are synonyms defined as:

coin collecting and coin collection: the collection and study of money (and coins in particular)

Other synonyms of coin collecting include numismatics, numismatology.

coin collecting (noun)	coin collection (noun)
the collection and study of money (and coins in particular)	the collection and study of money (and coins in particular)
	a collection of coins