semiquincentennial
Syllables: sem·i·quin·cent·en·ni·al/ˌsɛ.miˌkwɪn.sɛnˈtɛn.i.əl//ˌsɛ.miˌkwɪn.sɛnˈtɛn.i.əl/
semiquincentennial adjective: of or relating to a 250th anniversary.

Adjective
semiquincentennial (not comparable)
- Of or relating to a 250th anniversary.
- [Bath, N.C. SemiQuincentennial Committee] Program for celebrating the 250th anniversary of the Incorporation of Bath, North Carolina, on March 8, 1705, October 1, 2, 3, 4, 1955. [Bath, 1955] 32 p.1958, Mary Lindsay Thornton, compiler, A Bibliography of North Carolina 1589–1956, Chapel Hill, N.C.: University of North Carolina Press, →OCLC, page 26
- She […] now serves as co-chair of the committee planning the observation and celebration of the university's semiquincentennial (250th) anniversary.2014 May, John Bishop, “In the Wind …”, in Stephen Schnurr, editor, The Diapason, number 5 (number 1254 overall), Arlington Heights, Ill.: Scranton Gillette Communications, →ISSN, →OCLC, page 6...
- Synonyms:
- sestercentenary
Noun
semiquincentennial (plural semiquincentennials)
- A 250th anniversary.
- The year 2026 will mark the semiquincentennial of the founding of the United States.
- "How old is the town anyway?" / "Well," said Brian, "while America was celebrating her bicentennial in 1976, Bath [in North Carolina] had already celebrated it[s] semiquincentennial in 1955." / "What's that?" asked Michael. / "It was Bath's 250th birthday."1979, Carole Marsh, “A Clue Comes Ashore”, in The Mystery of Blackbeard the Pirate (Carole Marsh Mysteries; 3), new edition, Peachtree, Ga.: Gallopade International/Carole Marsh Books, published...
- Synonyms:
- sestercentennial, bisesquicentennial, bicenquinquagenary
Examples of semiquincentennial in a sentence
- This semiquincentennial celebration features 250 objects – including the desk used by Thomas Jefferson to draft the Declaration of Independence – spread over 250,000 square feet.2026 June 12, “On exhibit: Museums”, in The Washington Post (Weekend section), Washington, D.C.: The Washington Post Company, →ISSN, →OCLC...
- For many Americans, the semiquincentennial is less a celebration than a reckoning.2026 July 1, Fabiola Cineas, “‘The next 250 years belong to all of us’: Seven activists on rebuilding the US”, in Katharine Viner, editor...
Synonyms of semiquincentennial
Forms of semiquincentennial
| plural | semiquincentennials |
|---|
Origin of semiquincentennial
From semi- (prefix meaning ‘half’) + quincentennial (“500th anniversary”).
Words that rhyme with semiquincentennial
Questions about semiquincentennial
- What does semiquincentennial mean?
- Semiquincentennial means of or relating to a 250th anniversary.
- How do you use semiquincentennial in a sentence?
- This semiquincentennial celebration features 250 objects – including the desk used by Thomas Jefferson to draft the Declaration of Independence – spread over 250,000 square feet.
- What part of speech is semiquincentennial?
- Semiquincentennial can be an adjective or a noun.
- How do you pronounce semiquincentennial?
- Semiquincentennial is pronounced /ˌsɛ.miˌkwɪn.sɛnˈtɛn.i.əl/ (UK).
Words near semiquincentennial in the dictionary
Source and license
Adapted from Wiktionary: semiquincentennial (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-semiquincentennial.wav, LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-semiquincentennial.wav.
Cite this entry: “semiquincentennial.” Word.ws, https://word.ws/semiquincentennial. Based on Wiktionary, CC BY-SA 4.0.
