ˈɒfɪsiˌeɪt

Definitions

1. verb

to serve as an official or perform a ceremonial function in a ceremony or event

“The mayor will officiate the wedding ceremony on Saturday.”

2. noun

the act of serving as an official or performing a ceremonial function

“The officiation of the new president was a grand affair.”

3. verb

to give official validity or authority to something

“The judge will officiate the contract to make it legally binding.”