Nauseate rhymes with:
abbreviate, affiliate, alleviate, appreciate, asphyxiate, delineate, depreciate, deviate, differentiate, emaciate, enunciate, excoriate, expatriate, expiate, expropriate, foliate, glaciate, herniate, humiliate, inebriate, infuriate, ingratiate, initiate, instantiate, irradiate, mediate, misappropriate, negotiate, obviate, officiate, permeate, recreate, renegotiate, renunciate, repatriate, repudiate, retaliate, substantiate, unaffiliate
Nauseate sounds like:
nagata, nagged, nakata, naked, nast, nasta, nasty, naught, naughty, nauseated, necessitate, necessitated, necessity, necked, necktie, negate, negated, negotiate, negotiated, nesseth, nest, nesta, neste, nestea, nested, neustadt, newest, newgate, newgateway, newquist, newscast, newsday, next, nicest, nicety, nicked, niezgoda, night, nikita, niquette, nishida, nist, nixed, njt, noisiest, nonjet, nonunionized, nosed, nuanced, nugett, nugget, nunziata, nunziato, nyquist