Centurion rhymes with:
venturian, venturian, venturian, arthurian, burian, gurian, gurion, kurian, missourian, pagurian, timurian, venturian
Centurion sounds like:
centram, centromin, chemetron, cintron, condren, condron, contran, contrarian, conundrum, cosmodrome, counterman, countryman, countrymen