Quick definitions from WordNet (calm)
▸ noun: steadiness of mind under stress
▸ verb: become quiet or calm, especially after a state of agitation
▸ verb: make calm or still
▸ verb: cause to be calm or quiet as by administering a sedative to
▸ verb: make steady
▸ adjective: characterized by absence of emotional agitation ("Calm acceptance of the inevitable")
▸ adjective: marked by freedom from agitation or excitement ("The rioters gradually became calm and slowly dispersed")
▸ adjective: (of weather) free from storm or wind ("Calm seas")
▸ adjective: not agitated; without losing self-possession ("Spoke in a calm voice")
▸ Also see calm
▸ noun: steadiness of mind under stress
▸ verb: become quiet or calm, especially after a state of agitation
▸ verb: make calm or still
▸ verb: cause to be calm or quiet as by administering a sedative to
▸ verb: make steady
▸ adjective: characterized by absence of emotional agitation ("Calm acceptance of the inevitable")
▸ adjective: marked by freedom from agitation or excitement ("The rioters gradually became calm and slowly dispersed")
▸ adjective: (of weather) free from storm or wind ("Calm seas")
▸ adjective: not agitated; without losing self-possession ("Spoke in a calm voice")
▸ Also see calm