To become calm.
To make calm.
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.
A fanatic, a person with an obsession.
An insane person, especially one who suffers from a mania.