Monday

noun

Mon·​day ˈmən-(ˌ)dā 

-dē

: the second day of the week

Mondays

ˈmən-(ˌ)dāz

-dēz 

adverb

Examples of Monday in a Sentence

I had lunch with her last Monday.

I'll be seeing her again next Monday.

My birthday falls on a Monday this year.

Next week I'll arrive on Monday and leave on Friday.

I will arrive on Monday morning.

Recent Examples on the Web

Date, time, cast, trailer, how to watch 2025 Westminster Kennel Club Dog Show schedule Monday, Feb. 10 Dog Show Day 1 Need a break? —Fernando Cervantes Jr., USA TODAY, 11 Feb. 2025

On a conference call with investors Monday, McDonald's Chairman, President and Chief Executive Officer Chris Kempczinski said industry-wide fast food sales to low-income consumers were down double-digits in the U.S. in the October-December period. —Dee-Ann Durbin The Associated Press, arkansasonline.com, 11 Feb. 2025

Comments The Voice has just kicked off a new season, but by Monday, the second night of the Blind Auditions, the gloves were off. —Raechal Shewfelt, EW.com, 11 Feb. 2025

After Monday night’s bombshell announcement, all of Adams’ challengers in June’s Democratic mayoral primary predicted that New York City’s residents would punish the mayor at the ballot box. —Chris Sommerfeldt, New York Daily News, 11 Feb. 2025

Word History

Etymology

Middle English, from Old English mōnandæg; akin to Old High German mānatag Monday; akin to Old English mōna moon and to Old English dæg day

First Known Use

before the 12th century, in the meaning defined above

Phrases Containing Monday

• Easter Monday
• Monday-morning quarterback

Kids Definition

Monday

noun

Mon·​day ˈmən-dē 

: the second day of the week

Etymology

Old English mōnandæg "Monday," literally "the moon's day," a translation of Latin dies Lunae "day of the moon"

Word Origin

In ancient times, it was believed that there were seven "planets," one of which was the moon. The seven days of the week were named after the seven "planets" in Latin. One of the days was named dies Lunae, which means "day of the moon." The Latin name was later translated into other languages. In Old English, dies Lunae became mōnandæg. The word Monday comes from the Old English mōnandæg.