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

The audit report released Monday raises questions about whether there is sufficient accountability and oversight for San Dieguito’s four high school foundations. —Kristen Taketa, San Diego Union-Tribune, 6 Aug. 2025

The struggling reliever blew a save in Monday’s series-opener and has scuffled since the start of July, forcing Boone to consider alternatives for the closer’s role. —Gary Phillips, New York Daily News, 6 Aug. 2025

Herbert even alluded to this Monday when asked about Allen’s potential fit. —Daniel Popper, New York Times, 6 Aug. 2025

The search operation for Luhn began Monday and was expanded by Tuesday. —Sophie Tanno, CNN Money, 6 Aug. 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.