[ sen-ten-uh-ree, sen-tn-er-ee; especially British sen-tee-nuh-ree ]
/ sɛnˈtɛn ə ri, ˈsɛn tnˌɛr i; especially British sɛnˈti nə ri /


of or relating to a period of 100 years.
recurring once in every 100 years: a centenary celebration.

noun, plural cen·ten·ar·ies.

a centennial.
a period of 100 years; century.

Origin of centenary

1600–10; < Latin centēnārius (adj.), equivalent to centēn(ī) a hundred each (cent(um) 100 + -ēnī distributive suffix) + -ārius -ary

Can be confused

centenary centennial
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for centenary

British Dictionary definitions for centenary


/ (sɛnˈtiːnərɪ) /


of or relating to a period of 100 years
occurring once every 100 years

noun plural -naries

a 100th anniversary or its celebration

Word Origin for centenary

C17: from Latin centēnārius of a hundred, from centēnī a hundred each, from centum hundred
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012