n. An indivisible unit of sound in a given language. A phoneme is an abstraction of the physical speech sounds (phones) and may encompass several different phones.
The Century Dictionary and Cyclopedia
n. Same as phone, n.
n. A voice-sound imagined by the insane; a hallucination of voices.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. (linguistics) one of a small set of speech sounds that are distinguished by the speakers of a particular language