vaulter vs pole vaulter

vaulter and pole vaulter both are nouns.

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

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

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

Other synonyms of vaulter include pole jumper.

vaulter (noun)	pole 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