Calm

adj. peaceful, tranquil, relaxed

v. relax, soothe, make peaceful

n. peacefulness, quiet, tranquility

CALM may refer to:Department of Environment and Conservation (Western Australia), formerly named the Department of Conservation and Land Management (CALM).Cannabis as Living MedicineCareer and Life ManagementCafé-au-lait macules("spots") as seen in the medical condition neurofibromatosis
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Calm an adjective meaning peaceful, quiet; particularly used of the weather, free from wind or storm, or of the sea, opposed to rough. The word appears in French calme, through which it came into English, in Spanish, Portuguese and Italian calma. Most authorities follow Diez (Etym. Worterbuch der romanischen Sprachen) in tracing the origin to the Low Latin cauma, an adaptation of Greek Kaiii,ua, burning heat, xalECV, to burn. The Portuguese calma has this meaning as well as that of quiet. The connection would be heat of the day, rest during that period, so quiet, rest, peacefulness. The insertion of the L, which in English pronunciation disappears, is probably due to the Latin calor, heat, with which the word was associated.
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Noun
1. steadiness of mind under stress; "he accepted their problems with composure and she with equanimity"
(synonym) composure, calmness, equanimity
(hypernym) disposition, temperament
(hyponym) aplomb, assuredness, cool, poise, sang-froid
(derivation) calm down, cool off, chill out, simmer down, settle down, cool it
Verb
1. make calm or still; "quiet the dragons of worry and fear"
(synonym) calm down, quiet, tranquilize, tranquillize, tranquillise, quieten, lull, still
(antonym) agitate, rouse, turn on, charge, commove, excite, charge up
(hypernym) comfort, soothe, console, solace
(hyponym) lull
2. make steady; "steady yourself"
(synonym) steady, becalm
(hypernym) stabilize, stabilise
3. become quiet or calm, especially after a state of agitation; "After the fight both men need to cool off."; "It took a while after the baby was born for things to settle down again."
(synonym) calm down, cool off, chill out, simmer down, settle down, cool it
(hypernym) change state, turn
(derivation) composure, calmness, equanimity
4. cause to be calm or quiet as by administering a sedative to; "The patient must be sedated before the operation"
(synonym) sedate, tranquilize, tranquillize, tranquillise
(hypernym) affect
(hyponym) hypnotize, hypnotise, mesmerize, mesmerise
(derivation) composure, calmness, equanimity
Adjective
1. not agitated; without losing self-possession; "spoke in a calm voice"; "remained calm throughout the uproar"
(synonym) unagitated
(similar) composed
2. characterized by absence of emotional agitation; "calm acceptance of the inevitable"; "remained serene in the midst of turbulence"; "a serene expression on her face"; "she became more tranquil"; "tranquil life in the country"
(synonym) serene, tranquil
(similar) peaceful
3. (of weather) free from storm or wind; "calm seas"
(antonym) stormy
(similar) placid, quiet, still, tranquil, unruffled
(see-also) peaceful
4. marked by freedom from agitation or excitement; "the rioters gradually became calm and slowly dispersed"
(similar) unagitated

(super.)
Undisturbed by passion or emotion; not agitated or excited; tranquil; quiet in act or speech.
  

(super.)
Not stormy; without motion, as of winds or waves; still; quiet; serene; undisturbed.
  

(n.)
To make calm; to render still or quiet, as elements; as, to calm the winds.
  

(n.)
To deliver from agitation or excitement; to still or soothe, as the mind or passions.
  

(n.)
Freedom from motion, agitation, or disturbance; a cessation or absence of that which causes motion or disturbance, as of winds or waves; tranquility; stillness; quiet; serenity.
  

To see calm seas, denotes successful ending of doubtful undertaking. To feel calm and happy, is a sign of a long and well-spent life and a vigorous old age.