English Reference
noun

sis

n.
US /ˈsɪs/ UK /sˈɪs/ sis UK spelling sises

  1. 01 B1 Intermediate Informal

    a short, informal name for your sister or a very close female friend.

    an informal clipping of 'sister', frequently used as a term of endearment or a familiar address for a female sibling or close associate.

    Simple

    Hey sis, are you coming over for dinner tonight?

    In context

    She often referred to her childhood best friend as 'sis', reflecting a bond that felt as strong as any biological relationship.

    sisterbestie
    bro
This entry
Level B1 · Intermediate
Frequency Frequent
Updated