golfclub vs golf-club

golfclub and golf-club both are nouns.

Word	Noun	Adjective	Verb	Adverb
golfclub	Yes	No	No	No
golf-club	Yes	No	No	No

As nouns, golfclub and golf-club are synonyms defined as:

golfclub and golf-club: golf equipment used by a golfer to hit a golf ball

Other synonyms of golfclub include club, golf club.

golfclub (noun)	golf-club (noun)
golf equipment used by a golfer to hit a golf ball	golf equipment used by a golfer to hit a golf ball