[n] one paid to accompany or assist or live with another [n] a person who is frequently in the company of another; "drinking companions"; "comrades in arms" [n] a traveler who accompanies you [v] be a companion to somebody
accompany, associate, company, comrade, familiar, fellow, fellow traveler, fellow traveller, keep company
abigail, accompanier, accompanist, accompanyist, ace, adjunct, ally, alter ego, amah, amiable, amigo, analogon, analogue, associate, attend, attendant, au pair girl, ayah, bachelor, back, back stairs, balance rudder, banneret, baronet, batten, Bayard, bea