Mr. Definition
mĭstər
messrs
noun
Mister. Used as a courtesy title before the surname or full name of a man.
American Heritage
Used in informal titles for a man to indicate the epitomizing of an attribute or activity.
Mr. Suave; Mr. Baseball.
American Heritage
abbreviation
March.
Webster's New World
Mister.
Webster's New World
The ccTLD for Mauritania as assigned by the IANA.
Wiktionary
Origin of Mr.
-
Middle English abbreviation of maister master master
From American Heritage Dictionary of the English Language, 5th Edition