semi·​cir·​cle ˈse-mē-ˌsər-kəl How to pronounce semicircle (audio)
: a half of a circle
: an object or arrangement of objects in the form of a half circle
ˌse-mē-ˈsər-kyə-lər How to pronounce semicircle (audio)

Examples of semicircle in a Sentence

The children sat in a semicircle. The houses are built in a semicircle.
Recent Examples on the Web Today, 18 cabins form a semicircle around the shop, and construction is nearly complete on a two-story 5,000-square-foot community center, with a panoramic view of hills, valleys and the buildings of Cornell and Ithaca College in the distance. Photographs Todd Heisler, New York Times, 19 May 2024 The Vatican released photos of the encounter, showing relatives of several of the hostages sitting in a semicircle in front of Francis in his private library in the Apostolic Palace. NBC News, 9 Apr. 2024 See all Example Sentences for semicircle 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'semicircle.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Latin semicirculus, from semi- + circulus circle

First Known Use

1526, in the meaning defined at sense 1

Time Traveler
The first known use of semicircle was in 1526

Dictionary Entries Near semicircle

Cite this Entry

“Semicircle.” Dictionary, Merriam-Webster, Accessed 29 May. 2024.

Kids Definition


semi·​cir·​cle ˈsem-i-ˌsər-kəl How to pronounce semicircle (audio)
: half of a circle
: an object or arrangement of objects in the form of a half circle
semicircular adjective

More from Merriam-Webster on semicircle

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