Mono (disease)

Mono is short for infectious mononucleosis. It is also sometimes referred to as "the kissing disease" for its primary avenue of transmission: saliva.

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ad lib

Ad lib is a shortening of the Latin ad libitum, "at will."

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Charlie (Viet Cong)

Why were members of the Viet Cong often called Charlie by American soldiers during the Vietnam War?

Charlie is a shortening of Victor Charlie, the international radio code for V.C.—which was, of course, an abbreviation of Viet Cong.

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