What does centenary mean?
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From our dictionary:cen•ten•ar•y
Pronunciation: (sen-ten'u-rE, sen'tn-er"E; esp. Brit. sen-tE'nu-rE), [key]
—adj., n., pl. -ar•ies.
—adj.
1. of or pertaining to a period of 100 years.
2. recurring once in every 100 years: a centenary celebration.
—n.
1. a centennial.
2. a period of 100 years; century.