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
Verissimus	-	Late Roman
Nelinho	-	Portuguese
Azura	a-ZHUR-ə, AZH-rə	English (Rare)
Enguerrand	-	Medieval French
Ioan	-	Romanian, Welsh, Bulgarian
Scarlett	SKAHR-lət	English