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Pronunciation: Si - str
Depending upon birth order, can be:
A. A kind, caring sibling who is essential to your life, but can be a pain sometimes.

B. A total pain in the ass. Annoying, mean, bratty, to straight HELLSPAWN.
Sister by Churros_XD July 6, 2024
Female that has two parents in common with another living being.
Sister.
sister by Simaduria July 26, 2024
a senior female nurse, typically in charge of a ward.
"the ward sister needs to be consulted"
sister by Arminkshipper July 27, 2024
A gay man who isn’t masculine.
Gay: 1: omg look he’s so cutee *shows pic*

Gay 2: oh girl he’s a sister..

gay 1: what?? He doesn’t even look like one..
*blocks to avoid bumping purses*
Sister by Bakesbykay March 7, 2025
The person that people think are the best people ever but really just make their older brothers their slaves. Loves to blackmail and tattle on you.
Sister: Gimme ice cream
Me: Nah go get your own
Sister: Imma tell mom about you saying the f word
Me:ok ill get u ice cream
Sister by Lil’ Bad Boi May 14, 2025
Usually a wild or untamed animal, capable of anything. You must steer clear of their path otherwise you will meet your demise. Pack quite a punch at times of anger.
Sister by Definiety.com November 15, 2025