A state of nervousness about performing some action in front of a group of people, on or off of a stage; nerves; a lack of self-assurance before an audience.
The state or fact of being turbulent or agitated; tempestuousness, disturbance.
Disturbance in a gas or fluid, characterized by evidence of internal motion or unrest.
Specifically, a state of agitation or disturbance in the air which is disruptive to an aircraft.
An instance or type of such state or disturbance.