pole jumper vs vaulter

pole jumper and vaulter both are nouns.

Word	Noun	Adjective	Verb	Adverb
pole jumper	Yes	No	No	No
vaulter	Yes	No	No	No

As nouns, pole jumper and vaulter are synonyms defined as:

pole jumper and vaulter: an athlete who jumps over a high crossbar with the aid of a long pole

Other synonyms of pole jumper include pole vaulter.

pole jumper (noun)	vaulter (noun)
an athlete who jumps over a high crossbar with the aid of a long pole	an athlete who jumps over a high crossbar with the aid of a long pole