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Synonyms

MR

1 American  
Or M.R.

abbreviation

  1. mixed reality.

  2. motivation research; motivational research.

mR 2 American  
Or mr

  1. milliroentgen; milliroentgens.

Mr. 3 American  
[mis-ter] / ˈmɪs tər /

abbreviation

plural

Messrs

  1. mister: a title of respect prefixed to a man's name or position.

    Mr. Lawson; Mr. President.

  2. a title prefixed to a mock surname that is used to represent possession of a particular attribute, identity, etc., especially in an idealized or excessive way.

    Mr. Democrat; Mr. Perfect; Mr. Macho.
Mr 1 British  
/ ˈmɪstə /

noun

  1. a title used before a man's name or names or before some office that he holds

    Mr Jones

    Mr President

  2. (in military contexts) a title used in addressing a warrant officer, officer cadet, or junior naval officer

  3. a title placed before the surname of a surgeon

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
MR 2 British  

abbreviation

  1. Master of the Rolls

  2. motivation(al) research

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

Plural word for Mr. The plural form of Mr. is Messrs., pronounced [ mes-erz ]. A similar change is made with Mrs., which becomes Mmes, pronounced [ mey-dahm, -dam ]. These irregular nouns’ plural forms derive directly from their  original pluralization in French.

Etymology

Origin of Mr

C17: abbreviation of mister

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Her artwork had been discussed with the ruling coalition in Brussels, including Bouchez's MR -- which did not block its set-up.

From Barron's • Dec. 2, 2025

MR: She has a lot of fun with style in L.A.

From Los Angeles Times • Apr. 9, 2025

MR headsets enable users to effortlessly view and interact with both the real world and 3D models integrated within it, using devices such as the Microsoft HoloLens 2 and the Meta Quest Pro.

From Science Daily • Nov. 21, 2024

MR is more tactile, using objects in the real world in tandem with the user's view of a digital world to create a physically engaging experience.

From BBC • Nov. 6, 2024

He turned around and wrote in big huge block letters that spread all the way across the chalkboard: MR.

From "Wonder" by R. J. Palacio

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.