ingroup

/ˈɪnɡruːp/
noun
  1. A social group that a person belongs to and feels loyalty toward.
    • The team's ingroup had a strong sense of shared identity.
    • Teenagers often form an ingroup with their closest friends at school.
    • People tend to favor members of their own ingroup over outsiders.
Antonyms
What does "ingroup" mean? | whatsthatwordmean | whatsthatwordmean