strepitus (a loud noise produced by things without life; also of an alarm given): fremitus (hollow sounds, caused especially by living creatures): crepitus (a flapping, clapping noise; e.g., of the wings of a bird flying; , of a door when opened, etc.): sonitus (a clear, loud sound): stridor (a shrill tremulous sound, as of a saw): fragor (a crash): murmur (the murmuring, gurgling sound of water): without noise, sine strepitu; sine sonitu [☞ NOISELESS]: to make a noise, strepere strepitum edere; fremere; concrepare.