Mr.

1 of 2

noun

ˈmi-stər 

 in rapid speech especially in sense 2  (ˌ)mis(t)

variants US Mr. or British Mr

plural Messrs. ˈme-sərz 

1

—used as a conventional title of courtesy except when usage requires the substitution of a title of rank or an honorific or professional title before a man's surname

spoke to Mr. Doe

2

—used in direct address as a conventional title of respect before a man's title of office

May I ask one more question, Mr. President?

3

—used before the name of a place, profession, or activity or before an epithet (such as clever) to form a title applied to a male viewed as representative of the thing indicated

Mr. Baseball

mR

2 of 2

abbreviation

milliroentgen

Examples of Mr. in a Sentence

Recent Examples on the Web

Noun

As with other agencies affected as part of Mr. Musk’s effort, only a small fraction of AmeriCorps employees remained at the headquarters in Washington on Thursday. —Aishvarya Kavi, New York Times, 18 Apr. 2025

White House press secretary Karoline Leavitt said President Trump has been briefed on the shooting, and Mr. Trump made brief remarks about it Thursday afternoon. —Cara Tabachnick, CBS News, 17 Apr. 2025

This is a 12-year-old who watched her mother be brutally killed by Mr. Sanders. —Audrey Conklin, FOXNews.com, 17 Apr. 2025

His insights, tenacity and character will be a phenomenal addition to Mr. Combs' team. —Thomas G. Moukawsher, MSNBC Newsweek, 17 Apr. 2025

Word History

Etymology

Noun

Mr. from Middle English, abbreviation of maister master; Messrs. abbreviation of Messieurs, from French, plural of Monsieur

First Known Use

Noun

15th century, in the meaning defined at sense 1

Phrases Containing Mr.

• Mr. Nice Guy
• no more Mr. Nice Guy

Kids Definition

Mr.

noun

ˌmis-tər 

plural Messrs. ˌmes-ərz 

1

—used as a title before a man's last name or title of office

Mr. Doe

Mr. President

2

—used to form a title for a man who represents the thing indicated

Mr. Punctuality

Mr. Baseball

Etymology

Noun

Middle English Mr., an abbreviation of master

Medical Definition

mR

1 of 2 abbreviation

milliroentgen

MR

2 of 2 abbreviation

magnetic resonance