quin·cen·ten·a·ry (kw n s n-tn  -r , kwn-snt-nr)n. pl. quin·cen·ten·a·ries A 500th anniversary or celebration. adj. Of or relating to a span of 500 years or to a 500th anniversary. [From Latin qu  ngent, quncent, five hundred (on the model of such words as tercentenary); see penkwe in Indo-European roots.] |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | quincentenary - the 500th anniversary (or the celebration of it) anniversary, day of remembrance - the date on which an event occurred in some previous year (or the celebration of it) |
| Adj. | 1. | quincentenary - of or relating to a 500th anniversary; "the quincentennial celebration of the founding of the city" |
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