Sunna sunn • Sunni · · · Info · Definitions · Characters · · Sunna · · Text Latin · · Script 5 · · Length Definitions · · · (noun) (Islam) the way of life prescribed as normative for Muslims on the basis of the teachings and practices of Muhammad and interpretations of the Koran. Synonyms: Sunnah, hadith. · · Noun Definition 1 Characters · · S latin capital letter s U+0053 a latin small letter a U+0061 n latin small letter n U+006E u latin small letter u U+0075