[calm] n [ME calme, fr. MF, fr. OIt calma, fr. LL cauma heat, fr. Gk kauma, fr. kaiein to burn] (14c) 1 a: a period or condition of freedom from storms, high winds, or rough activity of water b: complete absence of wind or presence of wind having a speed no greater than one mile (1.6 kilometers) per hour--see beaufort scale table
2: a state of tranquillity
[2]calm vi (14c): to become calm--usu. used with down ~ vt: to make calm--often used with down [3]calm adj (14c) 1: marked by calm: still "a ~ sea"
2: free from agitation, excitement, or disturbance "a ~ manner" -- calm.ly adv -- calm.ness n syn calm, tranquil, serene, placid, peaceful mean quiet and free from disturbance. calm often implies a contrast with a foregoing or nearby state of agitation or violence "the protests ended, and the streets were calm again". tranquil suggests a very deep quietude or composure "the tranquil beauty of a formal garden". serene stresses an unclouded and lofty tranquillity "watched the sunset of a serene summer's evening". placid suggests an undisturbed appearance and often implies a degree of complacency "remained placid despite the criticism". peaceful implies a state of repose in contrast with or following strife or turmoil "grown peaceful in old age".