Doughnut rhymes with:
donut, donut, chesnut, chestnut, coconut, donut, groundnut, hazelnut, hudnut, walnut
Doughnut sounds like:
d'genetta, dachshund, decandia, decant, decent, dechant, decimate, decimated, deigned, desanti, desanto, descend, descended, descent, designate, designated, designed, desmet, desmith, desmond, dessent, detachment, diaconate, dicomed, dignity, disanti, disanto, discount, discounted, disjoint, disjointed, dismayed, disowned, disseminate, disseminated, dissent, dissented, dissonant, disunity, docent, document, documenta, documented, doesn't, dushyanth