Meaning

noun the particular auditory effect produced by a given cause

noun the subjective sensation of hearing something

noun mechanical vibrations transmitted by an elastic medium

originFrom Middle English sound, sund, isund, ȝesund, from Old English sund (“sound, safe, whole, uninjured, healthy, prosperous”), from Proto-West Germanic *sund, from Proto-Germanic *sundaz (“healthy”), merged with synonymous Old English ġesund, from Proto-West Germanic *gasund. Cognate with Scots sound, soun (“healthy, sound”), Saterland Frisian suund, gesuund (“healthy”), West Frisian sûn…

Etymology from Wiktionary, CC BY-SA 3.0