noun.
A poem consisting of one or more triplets each formed of stanzas of seven or eight lines, the last line being a refrain common to all the stanzas.
noun.
A poem divided into stanzas having the same number of lines, commonly seven or eight.
noun.
In music, a term variously applied to melodies for ballads, to extended narrative or dramatic works for a solo voice, occasionally to concerted choral cantatas, and to instrumental pieces of a melodic character — in the last case often without obvious reason.