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

When that first weekend closure did happen, Sunday night rain did not delay the lanes’ opening early Monday. — Doug Turnbull, AJC.com, 19 July 2026

The former mayor of Greater Manchester, in the northwest of England, Burnham will become the United Kingdom’s seventh prime minister in a decade on Monday after replacing Keir Starmer as leader of the ruling Labour Party. — Hanna Ziady, CNN Money, 18 July 2026

The heat will continue through the weekend, Macfarlane said, with Monday’s high projected to be 102. — Rachel Roberts, Idaho Statesman, 18 July 2026

Manager Craig Counsell said Taillon would be activated for the three-game series against the Detroit Tigers, which begins Monday. — Sean Hammond, Chicago Tribune, 18 July 2026

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.