sʼ Alveolar fricative

/sʼ/ Alveolar fricative ejective (Lower-Case S with Apostrophe)

Instructions:

Articulator: Tip of the tongue
Point of Articulation: Alveolar ridge
Manner: Ejective – 1) Make a closure between the articulator and the point of articulation. Approximately simultaneously, close the glottis (i.e., make a glottal stop). 2) Raise your larynx. 3) Lower the articulator, which will release air outward. 4) Release the glottal closure.
Voice: Voiceless

Occurrence:
Adyghe (Shapsug), Hausa, Lakota, Tlingit, Upper Necaxa Totonac
(Source: https://en.wikipedia.org/wiki/Alveolar_ejective_fricative)