Cartooning rhymes with:
tuning, ballooning, bruening, bruning, chewning, cocooning, communing, crooning, impugning, kooning, pruning, swooning, tuning
Cartooning sounds like:
cardenas, cardenas's, carotenes, carting, cartons, cartoons, chardonnays, charting, cording, cortens, cortens', cortinas, cortines, courtemanche, courting, crating, creating, creations, credence, credenza, crediting, croatian's, croatians, croatians', crowding, curtains