rotunda
Americannoun
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a round building, especially one with a dome.
-
a large and high circular hall or room in a building, especially one surmounted by a dome.
noun
Etymology
Origin of rotunda
1680–90; alteration of Italian rotonda, noun use of feminine of rotondo < Latin rotundus rotund
Explanation
When making the plans for your new house, consider adding a rotunda, or a round room. It will give the house a grand appearance and also allow you to walk in circles as much as you please. You may have heard the adjective rotund to describe a person with a round shape. Rotunda, with an -a at the end, is a noun that refers to a type of building or room that is round and often has a dome on top. Rotundas are often found as part of large, important buildings such as capitol buildings and museums.
Vocabulary lists containing rotunda
Escape from Mr. Lemoncello's Library
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Cormac McCarthy's "The Road"
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Vocabulary Video Contest (2013) - List 1
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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.
In a disco-ball-decorated rotunda, five Optimus bots performed a dance routine to Haddaway’s “What Is Love.”
From The Wall Street Journal • Jan. 3, 2026
Built in 1939 as the Floral Hall, the Ocean Room is a distinctive rotunda building, and for the past 50 years has operated as a night club and function venue.
From BBC • Apr. 26, 2025
“President Kennedy, who at one point worked as a senator in this building and would often walk through this very rotunda, once said, ‘In a democracy, every citizen, regardless of interest in politics, holds office.
From Los Angeles Times • Jan. 21, 2025
It was the coldest inauguration day in 45 years, meaning that the planned outdoor ceremony had to be scrapped and moved inside of the Capitol’s rotunda, which holds considerably fewer people.
From Salon • Jan. 21, 2025
The gym, pool, and auditorium were all connected by hallways that ran behind them and a large rotunda at their center, linked to the rest of the school by a main hall.
From "Made You Up" by Francesca Zappia
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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.