φώνημα

ατος, τό
A. sound made, utterance, S. Aj. 16, Ph. 1295, Ichn. 39; of a singer's voice, D.C. 61.20; of a dog's bark and ass's bray, Gal. 18(1).291.
2. thing spoken, speech, language, S. Ph. 234, OT 324.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project