When someone officiates at a ceremony or formal occasion, they are in charge and perform the official part of it. Bishop Silvester officiated at the funeral A memorial service was held yesterday at Wadhurst Parish Church. The Rev Michael Inch officiated
When someone officiates at a sports match or competition, they are in charge and make sure the players do not break the rules. Mr Ellis was selected to officiate at a cup game between Grimsby and Rotherham Frik Burger will officiate when the Pumas play Scotland. to perform official duties, especially at a religious ceremony
perform duties attached to a particular office or place or function; "His wife officiated as his private secretary" act in an official capacity in a ceremony or religious ritual, such as a wedding; "Who officiated at your wedding?