linksman vs hacker

linksman and hacker both are nouns.

Word	Noun	Adjective	Verb	Adverb
linksman	Yes	No	No	No
hacker	Yes	No	No	No

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

linksman (noun)	hacker (noun)
someone who plays the game of golf	one who works hard at boring tasks
	a programmer for whom computing is its own reward; may enjoy the challenge of breaking into other computers but does no harm
	someone who plays golf poorly