vaulter vs jock

vaulter and jock both are nouns.

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

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

vaulter: an athlete who jumps over a high crossbar with the aid of a long pole
jock: a person trained to compete in sports

Other hypernyms of vaulter include athlete.

vaulter (noun)	jock (noun)
an athlete who jumps over a high crossbar with the aid of a long pole	a support for the genitals worn by men engaging in strenuous exercise
	a person trained to compete in sports