atmosphere
an unpleasant atmosphere in the office

betting
betting office / betting shop

box office
box-office hit

CO
Commanding Officer

colonial
Colonial Office

DLO
dead letter office

DPO
Distributing Post Office

EASO
European Asylum Support Office

EPO
European Patent Office

FO
Foreign Office

GPO
General Post Office

HMSO
His (ou Her) Majesty's Stationery Office

HO
Home Office

ILO
International Labour Office

IRO
Inland Revenue Office

Jack-in-office
burocrata

land-office
to do a land-office business

office
a lawyer's office

office-bearer
pessoa que ocupa um cargo

office-seeking
à procura de cargo

OST
Office of Science and Technology

OSTI
Office of Scientific and Technical Information

Pat. Off.
Patent Office

PO
Post Office

POB
Post Office Box

POP
Post Office Preferred

SCIO
State Council Information Office

SO
Stationery Office

sub-office
sucursal

WO
War Office