sesquicentennial

/'seskwisen'tenjəl/
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Thân thiện
sesquicentennial

The town held a sesquicentennial parade to celebrate its founding.

Definition
  1. Noun:
    • The 150th anniversary of an event: A sesquicentennial marks the passage of 150 years since a significant occurrence.
    • The celebration of a 150th anniversary: A sesquicentennial is also the event or series of events held to commemorate this milestone.
Usage
  • The word "sesquicentennial" is a formal term used primarily in historical, institutional, and governmental contexts. It is not commonly used in everyday conversation.
  • It functions as a countable noun. You can have sesquicentennial or celebrate sesquicentennial of an institution.
Examples

  • As the anniversary:

    • The university is preparing for its sesquicentennial next year.
    • The sesquicentennial of the town's founding will be in 2025.

  • As the celebration:

    • The city's sesquicentennial featured a parade and a historical exhibition.
    • They published a special book for the library's sesquicentennial.
Advanced Usage
  • Sesquicentennial can be used attributively as a noun modifier (functioning like an adjective) before another noun.
    • The sesquicentennial committee planned the events for months.
    • We attended the sesquicentennial concert in the park.
Variants and Related Words
  • Sesquicentenary: This is a less common synonym with the same meaning as "sesquicentennial."
  • Centennial (noun): The 100th anniversary or its celebration.
  • Bicentennial (noun): The 200th anniversary or its celebration.
Synonyms
  • 150th anniversary: A more common, descriptive phrase for the same milestone.
Antonyms
  • There are no direct antonyms, but terms for other anniversaries serve as contrasts (e.g., centennial for 100 years, bicentennial for 200 years).
Word Origin and Notes
  • Etymology: The word is formed from the Latin prefix meaning "one and a half" (from "half" + "and") and (from Latin "hundred" + "year"). It literally means "one and a half hundred years."
  • Frequency: This is a low-frequency word, typically encountered in formal writing, news reports about major anniversaries, or academic historical texts.
sesquicentennial

The town held a sesquicentennial parade to celebrate its founding.

Noun
  1. the 150th anniversary (or the celebration of it)