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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: Well, I think that the cheeriness, the friendliness, they’re kind of clothes, right?

From Los Angeles Times Apr. 9, 2025

Her lawyer MR Harish told BBC Hindi that the the dispute had now escalated to the point where she was seeking a divorce.

From BBC Dec. 19, 2024

The suffragists returned to their posts, and fourteen women, including Lucy Burns, were arrested for carrying banners that said, MR.

From "Votes for Women!" by Winifred Conkling

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

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

In his judicious account of the affair, Mr. Alexander explains that he was initially reluctant to accede to their proposal, so uncertain was its constitutionality.

From The Wall Street Journal Jul. 15, 2026

Of course, devotion to principle and decorum sometimes hovers close to sanctimony, but there is a human side to Mr. Alexander as well, and even humor.

From The Wall Street Journal Jul. 15, 2026

Mr. Altman returned, all directors but one stepped down, and OpenAI’s most safety-oriented researchers eventually left to launch competing AI ventures.

From The Wall Street Journal Jul. 15, 2026

Accordingly, once he was persuaded of the move’s necessity, Mr. Alexander took the oath three days early and entered office on a heroic note.

From The Wall Street Journal Jul. 15, 2026

“The good news, Mr. Frabwick, is you’re not lost, and soon, you’ll no longer be confused. Come in and I’ll explain.”

From "The Undead Fox of Deadwood Forest" by Aubrey Hartman

The senior coroner asked Du Plessis: "What you are saying is that the CTE that Mr Stiles clearly had, you are satisfied on the balance of probability, the cause was heading the ball?"

From BBC Jul. 15, 2026

"Our thoughts are with Mr Smith's family and loved ones."

From BBC Jul. 14, 2026

"To make it perfectly clear, Mr Murrell never at any time had access to Yes Scotland's accounts."

From BBC Jul. 14, 2026

In a short statement after the ruling, Mr Gillham said: "I am disappointed and I need time to process the judgment before saying more."

From BBC Jul. 10, 2026

Mr Tibbs looked down at his toes and his lips moved in silent prayer.

From "The BFG" by Roald Dahl

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