Sister

Female sibling.

female sibling

A sister is a female sibling.

/ˈsɪstə(r)/

From Old English sweoster, from Proto-West Germanic *swester.

A sister is a girl or woman who shares one or both parents with you, like having someone to share toys and secrets with.

What does it mean to have a sister? It means you share at least one parent with another girl or woman
How are sisters related? They are siblings, sharing a family connection
Can you have more than one sister? Yes, it's possible to have multiple sisters

female sibling

sibling relative

half-sister stepsister

family

kinship social role