Rubaʿi Rubaʿi Rubāʿī (from "rubāʿiyy", plural "rubāʿiyāt") is the term for a quatrain, a poem or a verse of a poem consisting of four lines. It refers specifically to a form of Persian poetry, or its derivative form in English and other languages In classical Persian poetry, the "ruba'i" is written as a four-line (or two-couplet) poem, with a rhyme-scheme AABA or AAAA. This is an example of a "ruba'i" from Rūmī's Dīwān-i Shams": The usual metre of a Persian "ruba'i", which is used for all four lines of the above quatrain by Rumi, is as follows: In the above scheme,
Poetry used at the close of each subsequent stanza until the final quatrain, which is concluded by the two refrains. The remaining lines of the poem have an a-b alternating rhyme. The villanelle has been used regularly in the English language since the late 19th century by such poets as Dylan Thomas, W.H. Auden, and Elizabeth Bishop. A limerick is a poem that consists of five lines and is often humorous. Rhythm is very important in limericks for the first, second and fifth lines must have seven to ten syllables. However, the third and fourth lines only need five to seven.