The Oxford Thesaurus An A-Z Dictionary of Synonyms - employern.

1) proprietor, owner, patron, manager, director, chief, head, Colloq boss, Brit gaffer, governor, Eye dialect guv'nor, guv: My employer comes in late every day. 2) company, firm, corporation, business, establishment, organization, Colloq outfit: She took her employer to court for unfair dismissal.