Monday

noun

Mon·​day ˈmən-(ˌ)dā How to pronounce Monday (audio)
-dē
plural Mondays
: the day of the week between Sunday and Tuesday see also easter monday
Mondays
ˈmən-(ˌ)dāz, 
-dēz How to pronounce Monday (audio)
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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But on Monday, Broadcom CEO Hock Tan likened many of the investors drawn to the AI boom to gamblers and questioned the economics of AI labs as Wall Street debates whether the AI bubble will burst. — Andrew Nusca, Fortune, 16 Oct. 2026 Warmer weather is expected next week, with highs of 66 degrees Sunday, 71 Monday, 75 Tuesday and 77 Wednesday. — Kansas City Star, 15 Oct. 2026 Hurts received treatment on his calf Monday and Tuesday, according to the team, and participated fully in practice Wednesday. — Rohan Nadkarni, NBC news, 15 Oct. 2026 On Monday Anthropic released a blog post exploring this sort of attack. — Peter Hall, Scientific American, 15 Oct. 2026 See All Example Sentences for Monday

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

Time Traveler
The first known use of Monday was before the 12th century

Phrases Containing Monday

Rhymes for Monday

See All Rhymes for Monday

Browse Nearby Words

Mondale
Monday
Mondayish
See all Nearby Words

Cite this Entry

“Monday.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Monday. Accessed 20 Oct. 2026.

Copy Citation

Kids Definition

Monday

noun
Mon·​day ˈmən-dē How to pronounce Monday (audio)
: 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.
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Last Updated: - Updated example sentences

More from Merriam-Webster

Word of the Day

Listen to the pronunciation of compunction

See Definitions and Examples »

Popular in Grammar & Usage

See More

'Affect' vs. 'Effect'

Merriam-Webster’s Great Big List of Words You Love to Hate

The Exceptions of '-s' and '-es' Plurals

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

Did 'orange' the fruit or the color come first?
See More

Popular

See More

'Affect' vs. 'Effect'

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
artwork of illustrated limes with the text limes and smile with an arrow connecting the two words
Quiz: Spot the Anagram! Scramble these words to find new words with the e...
See All