Upstage: The area of the stage farthest from the audience. Also to steal the focus of the audience from the intended main performer.
Venue: See Site.
View-graph: Alternate name for overhead transparency.
Wings: Extreme sides of the stage normally hidden from the audience by curtains or walls.
Wireless microphone: See Cordless microphone.
Whisper: Attention-gaining device where presenter speaks with extremely low volume to one audience member.
Workshop: An educational session lasting from one hour to many days. Usually includes hands-on practice in the particular skills being taught.