Ballade

[Justin Bieber]

A poem consisting of one or more triplets of stanzas with a repeated refrain and an envoi.

[Merna]

a poem with one or more sets of three stanzas (= groups of lines) and a refrain (= a repeated part) :

[Cami]

A poem normally composed of three stanzas and an envoi. The last line of the opening stanza is used as a refrain, and the same rhymes, strictly limited in number, recur throughout.