Cheddar rhymes with:
deader, eder, fedder, feder, fedor, header, leder, lehder, maeder, medar, prijedor, raeder, redder, reder, rehder, schraeder, shredder, spreader, tedder, vedder
Cheddar sounds like:
cacciatore, cadre, caster, castor, castoro, castro, cater, caterer, cather, catheter, cedar, ceder, cestaro, cetera, chatter, chaudhry, cheater, chester, chichester, chitra, chitrao, chitter, chodorow, chowder, chowdhury, cider, citro, coaster, coauthor, coder, coderre, cooter, costar, costeira, coster, costra, coterie, cotter, cottier, couture, couturier, cowdery, cowdrey, cuadra, custer, cuter, cutrer, cutter, cytherea