WordNet sense 1 (the state of being with someone):

companionship, fellowship, society

WordNet sense 2 (a social or business visitor):

caller

WordNet sense 3 (a band of people associated temporarily in some activity):

party

WordNet sense 4 (crew of a ship including the officers; the whole force or personnel of a ship):

ship's company

WordNet sense 5 (organization of performers and associated personnel (especially theatrical)):

troupe

WordNet sense 6 (be a companion to somebody):

accompany, companion, keep company