Dictionary definition · calm
noun
- steadiness of mind under stress"he accepted their problems with composure and she with equanimity"
- wind moving at less than 1 knot; 0 on the Beaufort scale
verb
- make calm or still"quiet the dragons of worry and fear"
- make steady"steady yourself"
- become quiet or calm, especially after a state of agitation"After the fight both men need to cool off."
- cause to be calm or quiet as by administering a sedative to"The patient must be sedated before the operation"
adjective
- not agitated; without losing self-possession"spoke in a calm voice"
- (of weather) free from storm or wind"calm seas"
Source: Open English WordNet (CC BY 4.0).