centenary. / (sɛnˈtiːnərɪ) / adjective. of or relating to a period of 100 years. occurring once every 100 years.

What is a centennial person?

Centennial is a word to describe something that has lasted for 100 years — so your parents have been married an unusually long time! ... In the case of the adjective centennial, the addition of -ennial gives the word its sense of describing a one hundred year anniversary.

What centenary means?

A centenary, like its cousin centennial, is an anniversary. Thus, the year 2013 may mark the centenary of a town's founding, and the year-long calendar of public events that the town sponsors for the occasion—that is, the celebration of the anniversary—can also be called a centenary.