Mountains rhymes with:
mountain's, fountains, mountain's, atlantans, badmintons, cantons, clinton's, clintons, clintons', fountains, mountain's, plantains, tontons, trenton's
Mountains sounds like:
maddening, madding, madness, madonna's, maidens, maintaining, maintains, maintenance, mandamus, mandating, manhattan's, matinees, mating, matting, meat-eating, medianews, mediating, meditating, meditations, mediums, mednick, meeting, meeting's, meetings, mending, mendonca, mendonsa, mentink, mentioning, mentions, methanex, mindedness, minding, minnetonka, minting, mitnick, mittens, modems, monadnock, monatomic, monotonous, montana's, montanans, montanez, motioning, motions, motown's, mountain's, mountainous, mounting, mouthing, muddying, munitions, mutating, mutations, muting, mutinies, mutinous