centennials From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounThe hundredth anniversary of an event or happening. Related wordsSynonymscentenarycentenarianscentenariesmillennialsmillenialmillennialmillennial generationbaby boomersgenerationalgenerationbicentennialmillennialismtercentennialtricentennialcentipedessemicentennial References Wiktionary — centennials Wikipedia — centennials