Samekh是许多闪米特字母表中的第十五个字母，包括腓尼基字母、希伯来字母ס‎及亚兰字母，发音为/s/。

在阿拉伯字母表中并没有相应的字母。发/s/的阿拉伯字母是源自腓尼基字母而来的，并取代了Samekh在阿拉伯传统字母表中的位置。

腓尼基字母还演变为了希腊字母Ξ。

Samekh or Simketh is the fifteenth letter of many Semitic abjads, including Phoenician Ṣāmek , Hebrew ˈSamekh ס, Aramaic Semkath , Syriac Semkaṯ ܣ, representing /s/. The Arabic alphabet, however, uses a letter based on Phoenician Šīn to represent /s/ (see there); however, that glyph takes Samekh's place in the traditional Abjadi order of the Arabic alphabet.