1 Syllablebird's, birds, curds, girds, heards, herds, kurds, sherds, surds, third's, thirds, word's, words
Now you can make multisyllabic rhymes in the new rhymit app :)
2 Syllablesbirdles, blackbird's, blackbirds, bluebird's, bluebirds, byword's, bywords, catchwords, goatherds, herders, herdess, jailbirds, password's, passwords, rewords, sherdils, surdres, surdus, thirdnes, watchword's, watchwords, wordens, wordis, wordles
3 Syllablesabsurdnes, forewords, goatherdes, goatherdess, ladybird's, ladybirds, lyrebird's, lyrebirds