officiate

officiate (as something) (at something)

to serve as an official or moderator at some event. They asked me to officiate as a judge at the contest. Laura will officiate as parade marshal.

Name	Pronounced	Usage
CÁNdido	KAHN-dhee-dho	Spanish
Caja	-	Danish
Gilda	['gildə]
Nenad	-	Serbian, Croatian
RosalÍA	-	Spanish, Galician
Vibius	-	Ancient Roman