golfer vs putter

golfer and putter both are nouns.

Word	Noun	Adjective	Verb	Adverb
golfer	Yes	No	No	No
putter	Yes	No	Yes	No

As nouns, putter is a hyponym of golfer; that is, putter is a word with a more specific, narrower meaning than golfer:

golfer (noun)	putter (noun)
someone who plays the game of golf	the iron normally used on the putting green
	a golfer who is putting

golfer (verb)	putter (verb)
	move around aimlessly
	do random, unplanned work or activities or spend time idly
	work lightly