Open English Wordnet
Nouns
(n)myocardial infarction, myocardial infarct, MIdestruction of heart tissue resulting from obstruction of the blood supply to the heart muscle
(n)Michigan, Wolverine State, Great Lakes State, MI, Mich.a midwestern state in north central United States in the Great Lakes region, with capital Lansing
(n)Security Service, MI, Military Intelligence Section 5the government agency in the United Kingdom that is responsible for internal security and counterintelligence on British territory
(n)Secret Intelligence Service, MI, Military Intelligence Section 6the government agency in the United Kingdom that is responsible for internal security and counterintelligence overseas