midnight
Americannoun
adjective
-
of or relating to midnight.
-
resembling midnight, as in darkness.
idioms
noun
-
-
the middle of the night; 12 o'clock at night
-
( as modifier )
the midnight hour
-
-
to work or study late into the night
Other Word Forms
Etymology
Origin of midnight
before 900; Middle English; Old English midniht. See mid-, night
Explanation
Midnight is the moment at which one day ends and the next begins — it's twelve o' clock at night. Follow the Fairy Godmother's advice to Cinderella, and always get home before midnight. At midnight, the date changes, and the time changes from PM to AM. It's no surprise that midnight is the very middle of the night, the word itself stemming from the Old English mid-niht, from mid, "among" or "in the middle of," and night, from niht, which appropriately means both "night" and "darkness."
Vocabulary lists containing midnight
Blue
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Non-Color Words to Use When Describing Color
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
Florida's B.E.S.T. Common Prefixes: mid-
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"Operation Midnight Hammer was a complete and total obliteration of the Nuclear Dust sites in Iran," Trump wrote on his Truth Social platform, adding: "Therefore, digging it out will be a long and difficult process."
From Barron's • Apr. 21, 2026
Equity markets are moving past the conflict — just like they did during America’s “Operation Midnight Hammer” in June 2025.
From MarketWatch • Apr. 18, 2026
I mean, “The Midnight Special” with Chaka Khan and Rufus, all of those things that I was raised on, but I’m bringing my approach to it.
From Los Angeles Times • Apr. 14, 2026
In addition to Isfahan, some highly enriched uranium could also be stored at Fordo and Natanz, the other two enrichment facilities that were targeted in Operation Midnight Hammer last year.
From BBC • Mar. 31, 2026
"Midnight," she said with her head in the refrigerator, looking for the small carton of half and half.
From "It All Comes Down to This" by Karen English
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
