secret intelligence service

1. 1.

   the government agency in the United Kingdom that is responsible for internal security and counterintelligence overseas

   SynonymsMIMilitary Intelligence Section 6

   Broaderinternational intelligence agency

   United Kingdom

Questions about secret intelligence service

What does secret intelligence service mean?

secret intelligence service means "the government agency in the United Kingdom that is responsible for internal security and counterintelligence overseas".

What is another word for secret intelligence service?

Close synonyms include MI, Military Intelligence Section 6. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is secret intelligence service a common word?

secret intelligence service is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.