Associate

Associate, consociate, compeer, comrade, mate, companion, camarade [F.], confrère [F.], colleague, comate, copemate or copesmate [obs.]; partner; side-partner, copartner, consort; old -, crony; chum [colloq.], pal [slang], buddy [slang, World War]; playfellow, playmate, schoolfellow; bedfellow, bunkie [colloq., U. S.], bedmate, chamberfellow; classfellow, classman, classmate; roommate, shopmate, shipmate, messmate.

Compatriot

Compatriot, countryman. Friend due to shared nationality.