Petition rhymes with:
competition, repetition, competition, dietician, dietitian, mathematician, politician, repetition, theoretician, competition, dentition, dietician, dietitian, mathematician, mortician, optician, partition, politician, repetition, statistician, superstition, tactician, theoretician, titian
Petition sounds like:
padden, paden, paduano, patane, pathan, patin, patina, patino, patman, paton, patten, pattin, patton, payton, peaden, peden, pedone, peedin, pepitone, petain, petino, pettine, petunia, peyton, photon, pipitone, pitino, pitman, pitney, pittman, podany, podium, poten, potion, ptomaine, ptyon, put-on, putdown, putman, putnam, putney, puttnam, python