Etymology: (1350–1400; ME calm(e) < It calma (n.), calmo (adj.) < LL cauma summer heat )
Definition of 'Calm'
Princeton's WordNet
1. (noun)composure, calm, calmness, equanimity steadiness of mind under stress "he accepted their problems with composure and she with equanimity"
2. (adj)calm air, calm wind moving at less than 1 knot; 0 on the Beaufort scale
3. (adj)calm, unagitated, serene, tranquil not agitated; without losing self-possession "spoke in a calm voice"; "remained calm throughout the uproar"; "he remained serene in the midst of turbulence"; "a serene expression on her face"; "she became more tranquil"; "tranquil life in the country"
4. (verb)calm (of weather) free from storm or wind "calm seas"
5. (verb)calm, calm down, quiet, tranquilize, tranquillize, tranquillise, quieten, lull, still makecalm or still "quiet the dragons of worry and fear"
7. (verb)calm, calm down, cool off, chill out, simmer down, settle down, cool it 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."
8. (verb)sedate, calm, tranquilize, tranquillize, tranquillise cause to be calm or quiet as by administering a sedative to "The patient must be sedated before the operation"
1. (adjective)calm not excited or upset trained to stay/keep/remain calm in emergencies
2. calm without troubles or violence The city was calm again after the fire.
3. calm without movement The ocean looked calm.; She spoke calmly to the horse.
4. (noun)calm a quiet, peaceful time or place the calm of the early morning
5. calm the calm before the storm a peaceful time before a lot of activity the calm before the holiday storm
Definition of 'Calm'
Webster Dictionary
1. (noun)Calm 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
2. (noun)Calm to make calm; to renderstill or quiet, as elements; as, to calm the winds
3. (noun)Calm to deliver from agitation or excitement; to still or soothe, as the mind or passions
4. Calm not stormy; without motion, as of winds or waves; still; quiet; serene; undisturbed
5. Calm undisturbed by passion or emotion; not agitated or excited; tranquil; quiet in act or speech
Definitions of Calm 
Afrikaans: kalm
Arabic: ساكِن
Bulgarian: тих
Brazilian: calmo
Czech: klidný
German: ruhig
Danish: rolig
Greek: γαλήνιος, ακίνητος
Spanish: en calma, tranquilo, apac
Estonian: tüüne, vaikne
Farsi: آرام
Finnish: tyyni
French: calme
Hebrew: שָׁקט, רָגוּע
Hindi: शान्त
Croatian: miran, tih
Hungarian: csendes
Indonesian: tenang
Icelandic: lygn, kyrr
Italian: calmo
Japanese: 静かな
Korean: 고요한
Lithuanian: ramus
Latvian: mierīgs; rāms
Malay: tenang
Dutch: kalm
Norwegian: rolig, stille
Polish: spokojny, cichy
Persian: آرام
Pashto: آرام،خاموشی
Portuguese: calmo
Romanian: liniştit
Russian: спокойный; тихий
Slovak: pokojný
Slovenian: miren
Serbian: miran
Swedish: lugn
Thai: ที่สงบเงียบ
Turkish: sakin, dingin; dalgasız; 
Taiwanese: 平靜的
Ukrainian: спокійний, безвітряний
Urdu: خاموش ، پُر سکون
Vietnamese: êm đềm
Chinese: 平静的
