Sis Common

Sis has 5 different meanings across 2 categories:

Definitions

Noun

a female person who has the same parents as another person

"my sister married a musician"

sister sis

Initialism of second impact syndrome.

"The students were asked to line up in sis before entering the laboratory."

Clipping of sister.

plural of SI

In plain English: Sis is an informal way to call your younger sister or refer to any female friend you are close with.

"My sis helped me move all my boxes to the new apartment."

Proper Noun

Initialism of Secret Intelligence Service.

"The SIS is responsible for gathering foreign intelligence on behalf of the United Kingdom government."

Example Sentences

"My sis helped me move all my boxes to the new apartment." noun

"My sis is coming over for dinner tonight." noun

"She told her sister that she was going to move across the country." noun

"The old man patted his young sis on the back before leaving." noun