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

President Benjamin Harrison, another tariff man, owned two opossums named for his economic policies—Mr. Protection and Mr. Reciprocity. —Daniel Immerwahr, New Yorker, 16 June 2025

The musician starts by knocking out Mr. Player, Mr. Dancer, Mr. Traitor, Mr. Racer, Mr. Dealer, and finally MrBeast. —Larisha Paul, Rolling Stone, 16 June 2025

Organizers said the No Kings Day of Defiance is expected to be the largest single-day mobilization since Mr. Trump returned to office. —CBS News, 15 June 2025

Strong leadership was needed, and Mr. Smith was in the forefront. —Tom Strong, Chicago Tribune, 15 June 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