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

Apple is expected to announce new artificial intelligence features at its annual Worldwide Developer Conference on Monday, which could supercharge its products and bring Apple back into competition with much of the rest of the tech world that has already gone full steam ahead on AI. —Clare Duffy, CNN, 10 June 2024

Here are some of the best things to do this week in San Diego, from Monday, June 10 to Friday, June 14. Check back Wednesday for our guide to things to do this weekend, or check out our San Diego guides for more ideas. —The San Diego Union-Tribune Staff, San Diego Union-Tribune, 10 June 2024

In an interview with InStyle published on Monday, June 10, Peltz-Beckam, 25, shared that kids are a big topic of discussion for him and his wife, Nicola Peltz-Beckham, 29. —Emma Aerin Becker, Peoplemag, 10 June 2024

Firefighters in Miami were battling a blaze that broke out in an apartment building where a gunshot victim was found Monday morning, according to fire officials. —Stephen Sorace, Fox News, 10 June 2024

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

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.