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
Olwyn	-	Welsh
Giorgi	-	Georgian
Tabby	TAB-ee	English
Emre	EM-re	Turkish
Wassa	-	Anglo-Saxon
ArİF	-	Turkish, Azerbaijani