Basīṭ (Arabic: بسيط), or al-basīṭ (البسيط), is a compound meter used in classical Arabic poetry. The word literally means "extender" in Arabic. The metrical form is as follows (the letter L representing a long syllable and S representing a short syllable):
It is often used alongside another meter called ṭawīl (طويل).
The term is also used in a musical context; in the Andalusi nubah, or classical suites, of Morocco, each nubah, or suite, is divided into five main movements (called mīzān (ميزان; plural: mawāzīn, موازين)) each of which uses a different rhythm, as follows: