sib

/sɪb/
noun
  1. A sibling; a brother or sister.
    • My sib and I used to share a bedroom when we were kids.
    • She is the youngest sib in a family of five children.
    • He invited all his sibs to the family reunion.
  2. A group of people descended from a common ancestor; a clan or tribe, especially in anthropological contexts.
    • The anthropologist studied the marriage customs of the local sib.
    • Members of the same sib often share a totem animal.
    • The village was organized into several sibs, each with its own leader.
What does "sib" mean? | whatsthatwordmean | whatsthatwordmean