goalkeeper vs athlete

goalkeeper and athlete both are nouns.

Word	Noun	Adjective	Verb	Adverb
goalkeeper	Yes	No	No	No
athlete	Yes	No	No	No

As nouns, athlete is a hypernym of goalkeeper; that is, athlete is a word with a broader meaning than goalkeeper:

Other hypernyms of goalkeeper include jock, participant, player.

goalkeeper (noun)	athlete (noun)
the defensive position on an ice hockey or soccer or lacrosse team who stands in front of the goal and tries to prevent opposing players from scoring	a person trained to compete in sports
the soccer or hockey player assigned to protect the goal