is a specific kind of: organisation, organization.

is a broader term that covers: klavern | administrative body, administrative unit | company | family, home, house, household, menage | general delivery, poste restante | instrumentality | ICU, intensive care unit | member | force, military force, military group, military unit | task force | squad, team | den | crew, gang, work party | combination | crew | scout group, scout troop, troop | outfit | fifth column, Trojan horse | political entity, political unit | side | working group, working party ... show more.

derivation: unitise, unitize.