Monotone rhymes with:
acetone, baritone, acetone, baritone, blackstone, bloodstone, bluestone, blystone, bridgestone, brookstone, brownstone, capstone, cherrystone, cobblestone, cornerstone, coverstone, curbstone, dialtone, executone, eyestone, featherstone, finestone, firestone, flagstone, folkstone, freestone, gallstone, gemstone, gladstone, goldstone, gravestone, greenstone, greystone, grindstone, hailstone, halftone, headstone, instone, johnstone, keystone, levinstone, lightstone, limestone, livingstone, lodestone, medstone, milestone, millstone, moonstone, nutone, overtone, pepitone, pipitone, poundstone, redstone, reflectone, rhinestone, richstone, sandstone, silverstone, steppingstone, tombstone, touchstone, undertone, waterstone, weatherstone, wedgestone, whetstone, whitestone, yellowstone
Monotone sounds like:
madam, madame, madan, maddamma, madden, maden, madman, madmen, madonia, madonna, madyun, mahatma, mahtan, maiden, maintain, manhattan, mantione, manton, matewan, mathan, mathena, matheney, matheny, matinee, mation, matney, mattina, matton, mattoon, mayden, maydena, mayton, meantime, medema, median, mediation, medimmune, medin, medina, meditation, medium, medwin, mendan, menhaden, menotomy, mention, menton, methadone, methane, metheney, metheny, metonomy, midthun, midtown, miedema, minatome, mindanao, minden, minton, minuteman, minutemen, mithun, mitman, mittan, mitten, mittman, mitton, modem, moden, modena, modine, momentum, monotony, montana, montanan, montano, montanye, montenay, montien, montini, montminy, montone, moten, mothon, motion, moton, motown, mountain, mouton, mundane, munden, munition, muntean, mutation, mutiny, mutton