Semiquincentennial (noun)
se-mee-kwin-sen-tee-nee-al
A 250th anniversary or its celebration.
Semiquincentennial derives from the Latin words semi, “half,” quinque, “five,” and centum, “one hundred.”
Example sentences
“It’s quite the twist of fate that America will celebrate its semiquincentennial on a year that is one of the most tumultuous in its history/”
Following the success of the BAFTA-nominated animation, Mog’s Christmas which first aired in 2023, the much-loved cat – created by the late Judith Kerr – will return to TV screens…







