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

Third day: Monday, April 28, 5 p.m., held in St. Peter’s Basilica. —Fernando Cervantes Jr., USA Today, 27 Apr. 2025

Kielce Gussie gave the first reading at the funeral Mass held for Francis at St. Peter's Square in Vatican City on Saturday, April 26, following his death on Monday, April 21. —Escher Walcott, People.com, 26 Apr. 2025

Keep scrolling to see more of our favorite Joanna Gaines rugs on sale for Way Day, but shop fast, the sale ends on Monday at midnight. —Shea Simmons, Southern Living, 26 Apr. 2025

The workweek begins Monday with mostly sunny conditions in the forecast, with a high near 75 and a low of 58. —Todd Karpovich, Baltimore Sun, 26 Apr. 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

Rhymes for Monday

• bundy
• fundi
• grundy
• gundy

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.