Sas vs. Sis — What's the Difference?

A specialist regiment of the British army that is trained in commando techniques of warfare and used in clandestine operations (especially against terrorist groups)

A person's sister (often used as a form of address)

Used to express disappointment, disgust, or contempt

Sister.

(informal) sister

She

A colloquial abbreviation of Sister.

Six. See Sise.

A female person who has the same parents as another person;