semicentennial
Americanadjective
noun
-
a fiftieth anniversary.
-
the celebration of this anniversary.
adjective
-
(prenominal) of or relating to the 50th anniversary of some event
-
occurring once every 50 years
noun
Etymology
Origin of semicentennial
First recorded in 1855–60; semi- + centennial
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.
On the semicentennial Fourth of July, having reconciled, both men die.
From The Wall Street Journal ● Jul. 2, 2026
City University marks its semicentennial with 63,000 alumni.
From Seattle Times ● Aug. 8, 2023
As the program celebrates its semicentennial, we asked readers to share their favorite P-Patch memories.
From Seattle Times ● Apr. 18, 2023
This season, Wolf Trap in Vienna, Va., returns to the scene to celebrate the semicentennial of the Filene Center.
From Washington Post ● Jun. 8, 2021
The State Historical Society of Missouri, a semicentennial history, 1898-1948.
From U.S. Copyright Renewals, 1976 January - June by Library of Congress. Copyright Office
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
