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

Following Pretty Woman, Hyde-White was cast as the elastic hero Mr. Fantastic, a.k.a. —Andrew Walsh, EW.com, 23 Mar. 2025

Known as nationwide or universal injunctions, at least a dozen of these orders have been issued by judges overseeing the more than 100 cases challenging the policies rolled out by Mr. Trump. —Melissa Quinn, CBS News, 22 Mar. 2025

Cupp's inquiry leaves no stone unturned, piecing together the events of the evening while simultaneously looking for Mr. Wynter’s killer. —Lynsey Eidell, People.com, 22 Mar. 2025

The Season 2 finale, which was released the day prior to the panel, involves Mr. Milchick acting as a drum major during an elaborate marching band sequence. —Abigail Lee, Variety, 22 Mar. 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