Meaning of secret service
- the branch of governmental service that conducts secret investigations, esp. investigations into the military strength of other nations.
- (caps.) the branch of the U.S. Department of the Treasury charged chiefly with the discovery and apprehension of counterfeiters and with providing protection for the president and the president's immediate family.
- secret work for a government, esp. espionage.
- secret service (Thesaurus)