calm^*kɑm; older kæm; spelling pron. kɑlm(adj.; n.; v.)calm•er, calm•est

1. (adj.)without rough motion; still or nearly still:

   a calm sea.

2. not windy:

   a calm day.

3. free from excitement or passion; tranquil:

   a calm manner.

4. (n.)freedom from motion or disturbance; stillness.

5. wind speed of less than 1 mph (0.447 m/sec).

   Category: Meteorology

6. freedom from agitation or excitement; tranquillity.

7. (v.t.)to make calm.

8. (v.i.)to become calm (usu. fol. by down).

^* Syn: calm , collected , composed , cool imply the absence of agitation. calm implies an unruffled state in the midst of disturbance all around: He remained calm throughout the crisis. collected implies complete command of one's thoughts, feelings, and behavior, usu. as a result of effort: The witness was remarkably collected during questioning. composed implies inner peace and dignified self-possession: pale but composed. cool implies clarity of judgment and absence of strong feeling or excitement: cool in the face of danger.

Origin of calm:

1350–1400; ME calm(e) < It calma (n.), calmo (adj.) < LL cauma summer heat

calm′ness(n.)