voice (n.)

late 13c., "sound made by the human mouth," from Old French voiz "voice, speech; word, saying, rumor, report" (Modern French voix), from Latin vocem (nominative vox) "voice, sound, utterance, cry, call, speech, sentence, language, word" (source also of Italian voce, Spanish voz), related to vocare "to call" (from PIE root *wekw- "to speak").

Replaced Old English stefn "voice," from Proto-Germanic *stemno, from PIE *stomen- (see stoma). Meaning "ability in a singer" is first attested c. 1600. Meaning "expression of feeling, etc." (in reference to groups of people, etc., such as Voice of America) is recorded from late 14c. Meaning "invisible spirit or force that directs or suggests," (especially in the context of insanity, as in hear voices in (one's) head, is from 1911.

voice (v.)

mid-15c., "to be commonly said," from voice (n.). From c. 1600 as "to express, give utterance to" (a feeling, opinion, etc.); from 1867 as "utter (a letter-sound) with the vocal cords." Related: Voiced; voicing.

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Definitions of voice from WordNet
voice (n.)
the distinctive quality or pitch or condition of a person's speech;
A shrill voice sounded behind us
voice (n.)
the sound made by the vibration of vocal folds modified by the resonance of the vocal tract;
a singer takes good care of his voice
Synonyms: vocalization / vocalisation / vocalism / phonation / vox
voice (n.)
a sound suggestive of a vocal utterance;
the noisy voice of the waterfall
the incessant voices of the artillery
voice (n.)
expressing in coherent verbal form;
I gave voice to my feelings
Synonyms: articulation
voice (n.)
a means or agency by which something is expressed or communicated;
conservatism has many voices
the Times is not the voice of New York
the voice of the law
voice (n.)
something suggestive of speech in being a medium of expression;
the wee small voice of conscience
he said his voices told him to do it
the voice of experience
voice (n.)
(metonymy) a singer;
he wanted to hear trained voices sing it
voice (n.)
an advocate who represents someone else's policy or purpose;
Synonyms: spokesperson / interpreter / representative
voice (n.)
the ability to speak;
he lost his voice
voice (n.)
(linguistics) the grammatical relation (active or passive) of the grammatical subject of a verb to the action that the verb denotes;
voice (n.)
the melody carried by a particular voice or instrument in polyphonic music;
Synonyms: part
voice (v.)
give voice to;
He voiced his concern
voice (v.)
utter with vibrating vocal chords;
Synonyms: sound / vocalize / vocalise