tight–knit 
/ˈtaɪtˈnɪt/ adjective
/ˈtaɪtˈnɪt/ adjective [more tight–knit; most tight–knit] — used to describe a group of people who care about each other and who are very friendly with each other ▪ We are a tight-knit [=close-knit] family/community.
