Fondues rhymes with:
antoniu's, argues, bayous, ceausescu's, compus, continues, corpuz, cuckoo's, cuckoos, curfews, dacruz, dangews, danju's, debuts, delacruz, deroos, donoghue's, eigenvalues, fujitsu's, ginsu's, gorguze, grandnephews, habitues, haikus, honolulu's, hormuz, issue's, issues, issues', kamakau's, kanemaru's, mathews, matthew's, matthews, menus, mongosutu's, nephew's, nephews, palau's, pelekunu's, quazulu's, rodrigeuz, sununu's, tadeusz, toews, undervalues, values, values', venues, virtues, w's, w.'s, w.s, zulus
Fondues sounds like:
fanatic, fanatics, fantasia, fantasies, fantasize, fantasizes, fantasy, fantozzi, fends, fiendish, fiends, finds, fonda's, fontes, fonts, fuentes, fuentez, fund's, funds, funds'