Triennial synonyms

trī-ĕn'ē-əl
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The three-hundredth anniversary of an event; tricentennial.
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The 300th anniversary of an event
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Find another word for triennial. In this page you can discover 5 synonyms, antonyms, idiomatic expressions, and related words for triennial, like: tercentennial, tercentenary, biennial, biannual and four-yearly.