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
Heard	-	Anglo-Saxon
Marilou	mer-i-LOO (English), mar-i-LOO (English)	French, English, Dutch
Peyton	PAY-tən	English
Vendula	-	Czech
Warner	['wɔ:nə]
Channah	-	Hebrew, Biblical Hebrew