tercentenary

noun [C]

/ˌtɜː.senˈtiː.nər.i/ /-ˈten.ər-/

/tɚˈsen.tən.er-/ mainly UK (mainly US tercentennial)

Definition

› the day or year that is 300 years after an important eventYears and yearlyBirthdays and anniversaries

(Definition of tercentenary noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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