The state of being calm; peacefulness; absence of worry, anger, fear or other strong negative emotion.
A period of time without wind.
The state of being calm; absence of noise and disturbance.
with few or no waves on the surface; not rippled.
Peaceful, quiet, especially free from anger and anxiety.
Free of noise and disturbance.
Without wind or storm.
To become calm.
To make calm.
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.