Tumor rhymes with:
toomer, bloomer, blumer, boomer, bruemmer, brumer, consumer, coomer, groomer, humor, loomer, okuma, plumer, rumer, rumor, schumer, shumer, toomer, woomer
Tumor sounds like:
tainer, tamara, tamer, tammaro, tamura, tanimura, tanner, teamer, tener, tenera, tenner, tenor, tenore, tenorio, tenure, thinner, thomure, tidmore, tiemeyer, tietmeyer, timer, timmer, timor, timur, tiner, tinier, tomaro, tomer, tomorrow, toner, tonner, toomer, towner, tuner, tyner