upon

1 of 2

preposition

up·​on ə-ˈpȯn How to pronounce upon (audio)
-ˈpän
Synonyms of uponnext
: on

upon

2 of 2

adverb

up·​on ə-ˈpȯn How to pronounce upon (audio)
-ˈpän
1
obsolete : on the surface : on it
2
obsolete : thereafter, thereon

Synonyms of upon

Examples of upon in a Sentence

Preposition He carefully placed the vase upon the table. They built their city upon a cliff overlooking the sea. She was seated upon a throne. an assault upon traditional values She was admitted to his office immediately upon her arrival. That kind of behavior is frowned upon.
Recent Examples on the Web
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Preposition
An increase has not been formally agreed upon and is still under evaluation, officials said. Dj Simmons june 17, Charlotte Observer, 17 June 2026 Since Köhler's early work, researchers have conducted similar experiments involving an out-of-reach reward and an object to stand upon in birds and elephants. Ari Daniel, NPR, 7 June 2026 An audience member who fled to the bathroom to vomit was swiftly set upon by an actor trying to incorporate them into a scene. K.j. Yossman, Variety, 30 May 2026 Closing the Strait of Hormuz has suddenly cut off a massive amount of global oil supply from the market, in what is widely agreed upon to be one of the worst energy crises in history. Molly Taft, Wired News, 15 May 2026 See All Example Sentences for upon

Word History

First Known Use

Preposition

12th century, in the meaning defined above

Adverb

13th century, in the meaning defined at sense 1

Time Traveler
The first known use of upon was in the 12th century

Browse Nearby Words

Cite this Entry

“Upon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/upon. Accessed 5 Jul. 2026.

Kids Definition

upon

preposition
up·​on
ə-ˈpȯn
-ˈpän
-(ˌ)pən

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