friend, friend of one's bosom; acquaintance, neighbor, wellwisher; alter ego; bosom friend, fast friend; amicus; usque ad aras; fidus Achates; persona grata., favorer, fautor, patron, Mecaenas; tutelary saint, good genius, advocate, partisan, sympathizer; ally; friend in need (auxiliary)., associate, compeer, comrade, mate, companion, confrere, camarade, confidante; old crony, crony; chum; pal; playfellow, playmate; schoolfellow; bedfellow, bedmate; chamber fellow; classfellow, classman, classmate; fellow man, stable companion; maid of honor., compatriot; fellow countryman, countryman., roommate, shopmate, shipmate, messmate; fellow companion, boon companion, pot companion; copartner, partner., Arcades ambo Pylades and Orestes Castor and Pollux, Nisus and Euryalus, Damon and Pythias, par nobile fratrum., host, Amphitryon, Boniface; guest, visitor, protégé.