semicentennial

noun
semi·​cen·​ten·​ni·​al | \ ˌse-mē-sen-ˈte-nē-əl How to pronounce semicentennial (audio) , ˌse-ˌmī-, -mi- \

Definition of semicentennial

: a 50th anniversary or its celebration

Other Words from semicentennial

semicentennial adjective

Examples of semicentennial in a Sentence

Recent Examples on the Web This season, Wolf Trap in Vienna, Va., returns to the scene to celebrate the semicentennial of the Filene Center. Washington Post, 9 June 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'semicentennial.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of semicentennial

1859, in the meaning defined above

Learn More About semicentennial

Time Traveler for semicentennial

Time Traveler

The first known use of semicentennial was in 1859

See more words from the same year

Dictionary Entries Near semicentennial

semicentenary

semicentennial

semiceremonial

See More Nearby Entries 

Statistics for semicentennial

Cite this Entry

“Semicentennial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semicentennial. Accessed 28 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!