Princeton's WordNet
centennially(adverb)
every hundred years; once in a century
"the birthday of this city is being celebrated centennially"
Wiktionary
centennially(Adverb)
As part of a centennial.
ChatGPT
centennially
Centennially is an adverb indicating something that occurs every one hundred years or relating to a hundredth anniversary.
Webster Dictionary
Centennially(adverb)
once in a hundred years
Numerology
Chaldean Numerology
The numerical value of centennially in Chaldean Numerology is: 5
Pythagorean Numerology
The numerical value of centennially in Pythagorean Numerology is: 8
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