Murmur  —n. 1 subdued continuous sound, as made by waves, a brook, etc. 2 softly spoken or nearly inarticulate utterance. 3 subdued expression of discontent. —v. 1 make a murmur. 2 utter (words) in a low voice. 3 (usu. Foll. By at, against) complain in low tones, grumble. [latin]