the letter س Sīn, a letter variant of the letter ش Šīn. Šīn is positioned at its original 21st spot in the Arabic abjadi sequence, while its variant Sīn replaced Samekh at 15th position, with the numerical value of the replaced letter Samekh also assigned to its replacement letter Sīn. The Nabataean alphabet, however, which is the immediate predecessor to the Arabic alphabet, contained the letter Simkath 𐢖‎. Character encodings References Phoenician alphabet Hebrew letters