Cartoon rhymes with:
antoon, attune, festoon, huntoon, inopportune, mattoon, opportune, platoon, pontoon, toon, toone, tune
Cartoon sounds like:
caradine, caradonna, carden, cardin, cardoen, cardon, cardona, cardone, cardoni, cardoon, carotene, carton, ceradyne, ceridian, certain, chardonnay, chretien, cordon, cordone, corradino, corten, cortin, cortina, cortine, courtenay, courtney, craton, crayton, creation, creeden, creedon, cretien, cretin, criton, croatian, crowden, cureton, curtain, curtin, cwiertnia