[1] : The Collaborative International Dictionary of English v.0.48

vaulter \vault"er\, n.
   one who vaults; a leaper; a tumbler. --b. jonson.
   1913 webster

[2] : WordNet (r) 2.0

vaulter
     n : an athlete who jumps over a high crossbar with the aid of a
         long pole syn: pole vaulter, pole jumper
see also:
pole vaulter pole jumper 

[3] : Moby Thesaurus II by Grady Ward, 1.0

23 moby thesaurus words for "vaulter":
   broad jumper, bucking bronco, buckjumper, flea, frog, gazelle,
   goat, grasshopper, high jumper, hopper, hurdle racer, hurdler,
   jackrabbit, jumper, jumping bean, jumping jack, kangaroo, leaper,
   pole vaulter, salmon, stag, sunfisher, timber topper

Vaulter >> V Words
Vaulter, definition of term: Vaulter
vaulter_pag1.html

Pole Vaulter >> P Words
Pole Vaulter, definition of term: Pole Vaulter
pole+vaulter_pag1.html