Monday

noun

Mon·​day ˈmən-(ˌ)dā 

-dē

plural Mondays

: the day of the week between Sunday and Tuesday see also easter monday

Mondays

ˈmən-(ˌ)dāz, 

-dēz 

adverb

works late Mondays [=every Monday]

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

Nike's stock price has plummeted nearly 80% from its 2021 peak, and the company is set to be removed from the S&P 100 Index before the market opens next Monday. — CNBC, 18 Sep. 2026

Rhodes, the senior director, direct-to-consumer for Europe, Middle East and Africa at New Balance Athletics Inc, was interviewed by Katie Abel, executive editor, Footwear News, at the WWD x FN x Beauty Inc Women in Power event on Monday. — Vicki M. Young, Footwear News, 17 Sep. 2026

Mahomes dropped back just four minutes into the Chiefs’ opener against the Broncos on Monday, looked to his left and never took his eyes off his favorite target, Travis Kelce, before firing in his direction. — Sam McDowell, Kansas City Star, 17 Sep. 2026

However, the Daily Mail reported that on Monday a truck carrying copies was travelling between a printing plant and a warehouse in the Netherlands when it was intercepted while parked in a lay-by, with four copies of the book mysteriously stolen. — K.j. Yossman, Variety, 17 Sep. 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.