What rhymes with thundercloud's

1 Syllable
cloudscrowd'scrowdsloudsshrouds
2 Syllables
becloudscloudiscloudlescrowderscrowdisenshroudsloudesloudnesloudonsproudnesshroudles
3 Syllables
overcloudsovercrowdsthundercloud'sthunderclouds
4 Syllables
avowednes