What is another word for "partnership"?

Roget's Thesaurus (1911) lists these synonyms for "partnership": accessory, accompaniment, accompany, addition, adjunct, agent, agree, agreement, aid, alliance, along, and, appendage, appurtenance, arm, assent, associate, associated, association, attend, attendant, attribute, banker, bear, boat, body, bring, broker, bull, buyer, cadger, cambist, camelot, cause, chandler, changer, chapman, cheek, coagency, coefficiency.