/dɛsɪˈnɛl/ (des-ih-NEL)

Definitions

1. adjective

occurring or done every ten years

“The census is conducted decennially, as per the country’s constitution.”

2. noun

a period of ten years

“The decennial period between the two elections will have a significant impact on the political landscape.”

3. noun

a decennial celebration or event

“The city is hosting a decennial festival to commemorate its founding.”