calm >> /kɑ(l)m/
Definition: [transitive verb] Make (someone) tranquil and quiet; soothe.
Example: I took him inside and tried to calm him down
Definition: [noun] The absence of violent or confrontational activity within a place or group.
Example: the elections proceeded in an atmosphere of relative calm
Definition: [noun] The absence of wind.
Example: in the center of the storm calm prevailed
Definition: [adjective] Not showing or feeling nervousness, anger, or other strong emotions.
Example: she had to keep calm at all costs
Definition: [adjective] (of the weather) pleasantly free from wind.
Example: the night was clear and calm