Acronymn for England's Secret Intelligence Service aka MI6.

It was created in 1911 and today it's role is defined by the Intelligence Services Act of 1994 as "to obtain and provide information relating to the actions or intentions of persons outside the British Islands, and perform other tasks relating to these in relation to the interests of national security"

Sis (?), n.

A colloquial abbreviation of Sister.

 

© Webster 1913.


Sis (?), n.

Six. See Sise.

[Obs.]

Chaucer.

 

© Webster 1913.

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