What is the meaning of Secret Intelligence Service?

The government agency in the United Kingdom that is responsible for internal security and counterintelligence overseas.
- synonyms: MI, Military Intelligence Section 6

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APA	WordNet. (2010). secret intelligence service. Retrieved September 20, 2026, from http://smartdefine.org/secret_intelligence_service/definitions/1223562
Chicago	WordNet. 2010. "secret intelligence service" http://smartdefine.org/secret_intelligence_service/definitions/1223562 (accessed September 20, 2026).
Harvard	WordNet 2010, secret intelligence service, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/secret_intelligence_service/definitions/1223562>.
MLA	WordNet. "secret intelligence service" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/secret_intelligence_service/definitions/1223562>

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