We found 4 definitions of quincentennial from 3 different sources.
NounPlural: quincentennials |
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quincentennial - the 500th anniversary (or the celebration of it) | ||
quincentenary | ||
Adjective |
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quincentennial - of or relating to a 500th anniversary; "the quincentennial celebration of the founding of the city" | ||
quincentenary | ||
quincentenary, quincentennial the 500th anniversary (or the celebration of it) |