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

Freddy Peralta worked into the fifth Monday in Game 2, but just as, if not more important, were the three relief innings worked by Ian Seymour, normally the fifth starter. — Marc Topkin, The Orlando Sentinel, 9 Oct. 2026

Reservoirs in the country were 28% short of full capacity at the end of September and posed a risk to winter crops, according to a report by Nomura on Monday. — Priyanka Salve, CNBC, 8 Oct. 2026

Big league clubs would be scheduled for Monday games on national holidays, when many typically draw large crowds. — ABC News, 8 Oct. 2026

Rachel is expected to quickly weaken and lose its tropical characteristics soon afterward regardless, bringing flooding rains inland through Sunday and Monday. — Sean MacAday, Sacbee.com, 8 Oct. 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.