MI vs Mackinac Bridge

MI and Mackinac Bridge both are nouns.

Word	Noun	Adjective	Verb	Adverb
MI	Yes	No	No	No
Mackinac Bridge	Yes	No	No	No

MI (noun)	Mackinac Bridge (noun)
the government agency in the United Kingdom that is responsible for internal security and counterintelligence on British territory	a suspension bridge across the channel between the lower and upper peninsulas of Michigan
the government agency in the United Kingdom that is responsible for internal security and counterintelligence overseas
a midwestern state in north central United States in the Great Lakes region, with capital Lansing
destruction of heart tissue resulting from obstruction of the blood supply to the heart muscle