English dictionary
semicentennial
Definitions, examples, synonyms and antonyms from WordNet 3.0.
adjective
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of or relating to or marking the 50th anniversary
Source: WordNet 3.0
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Of or pertaining to half of a century, or a period of fifty years; as, a <i>semicentennial</i> commemoration.
Source: webster1913
noun
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the 50th anniversary (or the celebration of it)
Synonyms semicentenarySource: WordNet 3.0
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A fiftieth anniversary.
Source: webster1913