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 have challenged the traditional definitions of the sonnet form, rendering entire sequences of "sonnets" that often lack rhyme, a clear logical progression, or even a consistent count of fourteen lines. "Shi" () Is the main type of Classical Chinese poetry. Within this form of poetry the most important variations are "folk song" styled verse ("yuefu"), "old style" verse ("gushi"), "modern style" verse ("jintishi"). In all cases, rhyming is obligatory. The Yuefu is a folk ballad or a poem written in the folk ballad style, and the number of lines and the length of the lines could be irregular. For the