ʃ

Alternative forms

 * The form varies between curvy: an 's' stretched vertically – and straight: a vertical line with a right hook at top and a left hook at bottom. The glyph in the box at right has an intermediate form.

Etymology
Introduced by Isaac Pitman in his 1847 Phonotypic Alphabet, based on the italic form of the long s (ſ).

Symbol

 * 1)  a voiceless palatoalveolar sibilant.
 * 2)  -fricated release of a plosive (e.g., sometimes implying an affricate ); -coloring; or a weak, fleeting or epenthetic.
 * 3)  voiced alveolar fricative
 * 1)  voiced alveolar fricative

Etymology
From IPA.