a younger sister. type of: sis, sister. a female person who has the same parents as another person.

"Little Sister" is a rock and roll song written by Doc Pomus and Mort Shuman. It was originally released as a single in 1961 by American singer Elvis Presley, who enjoyed a No. 5 hit with it on the Billboard Hot 100. The single (as a double A-side with "(Marie's the Name) His Latest Flame") also reached No.

Use "Imouto" as the "little sister" word. Don't add honorifics "-chan" or "-kun" to the end. These are only used with "imouto" when you're being rude and condescending to your little sister. Add "-san" when talking about someone else's little sister.

Little Sisters (originally named as Gatherers by the game developers) are young girls who have been genetically altered and mentally conditioned to reclaim ADAM from corpses around Rapture.