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

Each Monday starts with a gathering of senior executives to review performance data from the previous week. — Andrew Edgecliffe-Johnson, semafor.com, 2 Oct. 2026

Save room on Monday, Wednesday or Friday for the chef’s table at Sokasi, a small wooden eight-seat outpost where traditional Balinese feasts are cooked right in front of you on a grill. — Condé Nast, Condé Nast Traveler, 1 Oct. 2026

But while many employees can only dream of a Saturday off, schools across the country are giving students a reprieve from the Monday morning blues with three-day weekends. — Muskaan Arshad, Fortune, 1 Oct. 2026

The deadline to register to vote in Georgia for the midterms is Monday. — Caleb Groves, AJC.com, 1 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.