Cavendish rhymes with:
brandish, fiendish, outlandish, standish, windisch, windish, bowdish, bradish, brandish, childish, faddish, fiendish, gladish, horseradish, kadish, kurdish, outlandish, prudish, radish, reddish, redish, standish, swedish, windisch, windish, yiddish
Cavendish sounds like:
cabinet's, cabinets, checkpoints, cifuentes, copayments, couponites, covenants