undertone, underbreath†; murmur, hum, susurration; tinkle; still small
voice.
hoarseness &c adj.; raucity†.
V. whisper, breathe, murmur, purl, hum, gurgle, ripple, babble, flow;
tinkle; mutter &c (speak imperfectly) 583; susurrate†.
steal on the ear; melt in the air, float on the air.
Adj. inaudible; scarcely audible, just audible; low, dull; stifled,
muffled; hoarse, husky; gentle, soft, faint; floating; purling, flowing
&c v.; whispered &c v.; liquid; soothing; dulcet &c (melodious) 413;
susurrant†, susurrous†.
Adv. in a whisper, with bated breath, sotto voce [Lat.], between the
teeth, aside; piano, pianissimo; d la sourdine†; out of earshot
inaudibly &c adj..
(ii) SPECIFIC SOUNDS