The feeling or spirit of attachment and loyalty to one's clan or fraternity (see clan, n.).

attributive and in other combinations, as clan-brother, clan-feeling, clan-gathering, clan-name, clan-sister, clan-spirit, clan-system, clan-tartan…

A tie with a characteristic pattern indicating that the wearer is a former pupil of a particular school, esp. a British public school. In extended…

Loyalty to a particular tribe or group of which one is a member.