- centennial⇄adj. 1. having to do with the 100th anniversary; of 100 years.
2. 100 years old or more.
Ex. centennial pines. - centennial⇄adv. centennially.
- centennial⇄centennial, adjective, noun.
- centennial⇄noun 1. a 100th anniversary.
Ex. The town is celebrating its centennial.
2. a celebration of a 100th anniversary; centenary.
Ex. I hope there will be a fair during our centennial.