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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:

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: There are seasons, but they’re so small, and the wavelengths are much smaller, the change is much smaller, and that really mimics her experience and the PhD.

From Los Angeles Times Apr. 9, 2025

The team also employs an MR headset to compare 3D scanned ancient pottery sherds with physical ones, aiding in the analysis of inaccessible artifacts displayed in museums.

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

STEVE, sensing that a friend has arrived, turns and tries to smile at MR.

From "Monster" by Walter Dean Myers

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

Do you enjoy squirming and stammering while Mr. Oldman gives you grief?

From Los Angeles Times Aug. 17, 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

Prosecutors say Mr. Mangione wrote in a notebook that he was rebelling against “the deadly, greed fueled health insurance cartel.”

From The Wall Street Journal 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

“School let out early so I came to see Mr. Harris,” I say.

From "Red Flags and Butterflies" by Sheryl Azzam

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

The hat itself was one of those flat-topped pork-pie jobs with a jay's feather stuck in the hat-band and Mr Wormwood was very proud of it.

From "Matilda" by Roald Dahl

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