acrobat vs jock

acrobat and jock both are nouns.

Word	Noun	Adjective	Verb	Adverb
acrobat	Yes	No	No	No
jock	Yes	No	No	No

As nouns, jock is a hypernym of acrobat; that is, jock is a word with a broader meaning than acrobat:

acrobat: an athlete who performs acts requiring skill and agility and coordination
jock: a person trained to compete in sports

Other hypernyms of acrobat include athlete.

acrobat (noun)	jock (noun)
an athlete who performs acts requiring skill and agility and coordination	a support for the genitals worn by men engaging in strenuous exercise
	a person trained to compete in sports