Sinonim security service

English Thesaurus

1. the government agency in the United Kingdom that is responsible for internal security and counterintelligence on British territory (noun.group)

hypernym	:	international intelligence agency,
definition	:	an intelligence agency outside the United States (noun.group)

domain region	:	britain, great britain, u.k., uk, united kingdom, united kingdom of great britain and northern ireland,
definition	:	a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland; `Great Britain' is often used loosely to refer to the United Kingdom (noun.location)