WordNet sense 1 ((of a government or government official) holding an office means being in power):

power

WordNet sense 2 (professional or clerical workers in an office):

office staff

WordNet sense 3 (an administrative unit of government):

agency, authority, bureau, federal agency, government agency

WordNet sense 4 (place of business where professional or clerical duties are performed):

business office

WordNet sense 5 (the actions and activities assigned to or required or expected of a person or group):

function, part, role

WordNet sense 6 (a job in an organization):

berth, billet, place, position, post, situation, spot