adjective

 

person relaxed and not worried, frightened, or excited

a calm voice/manner

 

sea If the sea is calm, it is still and has no large waves.

 

weather If the weather is calm, there are no storms or wind.

 

noun

 

when people or conditions are calm

 

verb

 

to make someone stop feeling upset, angry, or excited

The police tried to calm the crowd.