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  • MR
    MR
    abbreviation
  • mR
    mR
    milliroentgen; milliroentgens.
  • Mr.
    Mr.
    abbreviation
    mister: a title of respect prefixed to a man's name or position.
  • Mr
    Mr
    noun
    a title used before a man's name or names or before some office that he holds
Synonyms

MR

1 American  
Or M.R.
mR 2 American  
Or mr
  1. milliroentgen; milliroentgens.


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

abbreviation

  • Messrs
    plural
  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.

See Examples For:

All of these observations closely match what the two-vector MR model predicts, without the need to invoke spin-current-based mechanisms.

From Science Daily Feb. 10, 2026

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: I think there’s a more basic point too, which is that the book wasn’t written for this world.

From Los Angeles Times Apr. 9, 2025

"Still large areas are to be explored and searched to find out whether live people are there or not," senior police officer MR Ajith Kumar told AFP news agency on Wednesday.

From BBC Aug. 1, 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

When the doctor uses a fluoroscope to see the thoracic organs in motion, the range is from 5 mR to 400 mR.

From Time Magazine Archive

At Oak Ridge, where nuclear physicists are so conscious of radiation hazards that they have done everything conceivable to reduce them, the skin exposure from a chest X ray is 10 mR.

From Time Magazine Archive

And while the previous Syrian government relied on Iran and Russia, Mr. al-Sharaa’s depends on Western and Gulf support, foreign investment and international acceptance.

From The Wall Street Journal Aug. 16, 2026

“Nick cannot show that Mr. Kanin’s conduct — rather than the unresolved legal question that persists under an entirely different trustee — caused any delay in his receipt of the distribution.”

From Los Angeles Times Aug. 16, 2026

While Mr. Mangione suffered chronic back pain and had spinal fusion surgery, it remains unclear why he believed the system failed him.

From The Wall Street Journal Aug. 16, 2026

Mr. Jenkins has hit on the way global warming will be defeated.

From The Wall Street Journal Aug. 16, 2026

She says that Phineas returns from New York to the family's New Hampshire home early in 1851 to work for Mr. Jonathan Currier in his livery stable in the nearby town of Hanover.

From "Phineas Gage" by John Fleischman

Friedman Agnifilo told the judge: "Mr Mangione is prepared to plead guilty at this time."

From BBC Aug. 14, 2026

Despite opinion polls registering a fall in Vladimir Putin's domestic approval ratings, Russia's president – Mr Muratov believes - retains a tight grip on power.

From BBC Aug. 13, 2026

On Sunday a Fifa spokesman repeated his denials of the allegations and added: "Under Mr Infantino, everything has always been done correctly."

From BBC Aug. 10, 2026

It followed another incident about 18 months ago where another man had gained access to his room by telling reception staff he was checking in under a common name such as "Mr Smith", Smith said.

From BBC Aug. 10, 2026

At this point, Mr Tibbs was seen to hesitate.

From "The BFG" by Roald Dahl

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