Hypotheses rhymes with:
parentheses, analyses, diocese, dioceses, emphases, idiosyncrasies, parentheses, rameses, analyses, diocese, dioceses, elysees, emphases, feces, idiosyncrasies, indices, monsees, oversees, parentheses, rameses, ramses
Hypotheses sounds like:
habitat's, habitats, habits, habitues, haft's, hafts, hafts', heifetz, hepatic, hepatitis, hibbitts, hoevet's, hoffitz, hypothesis, hypothesize