hooker vs athlete

hooker and athlete both are nouns.

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

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

hooker: (rugby) the player in the middle of the front row of the scrum who tries to capture the ball with the foot
athlete: a person trained to compete in sports

Other hypernyms of hooker include jock.

hooker (noun)	athlete (noun)
a prostitute who attracts customers by walking the streets	a person trained to compete in sports
(rugby) the player in the middle of the front row of the scrum who tries to capture the ball with the foot
a golfer whose shots typically curve left (for right-handed golfers)