New American Oxford Dictionary
in-group
in-group |ˈɪn ˌɡrup | ▶noun an exclusive, typically small, group of people with a shared interest or identity.
Oxford Dictionary
in-group
in-group ▶noun an exclusive, typically small, group of people with a shared interest or identity.
American Oxford Thesaurus
in-group
in-group noun inner circle, in-crowd, popular crowd, clique, set, circle, coterie; informal gang, bunch, crew.
Sanseido Wisdom Dictionary
in-group
í n-gr ò up 名詞 C ⦅しばしばけなして ⦆内集団 ; 組織内組織, 派閥 〘共通の利害を持つ者から成る排他的集団 〙.