ELI5: Explain Like I'm 5

Sister

A sister is a girl or woman who has the same parents as you. It's like having a special friend you can always be with because she's a part of your family. You share many things together like growing up in the same house, playing games, doing homework or chores, and maybe even sharing a bedroom. Sisters can be very close to each other and have secret codes or inside jokes that only they understand. Sometimes sisters may argue or fight over toys or clothes or who gets to do something first, but they usually make up and love each other again pretty quickly. Having a sister can be a really special experience that can last a lifetime.