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

On Monday, Khamenei’s body and those of his family will be taken through the streets of Tehran, which likely will draw large crowds. — Nasser Karimi, Los Angeles Times, 4 July 2026

And, yes, Monday’s start of the 2026-27 transaction period could begin to offer a clearer tell. — Ira Winderman, Sun Sentinel, 4 July 2026

The opening Monday saw Dame Ruth Beverley, awarded her title for services to higher education, in attendance. — Nick Miller, New York Times, 4 July 2026

Fried chicken is among Americans' favorite foods, and the dish is celebrated Monday, July 6, on National Fried Chicken Day. — Mike Snider, USA Today, 5 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.