paralanguage

Paralanguage is nonverbal communication such as your tone, pitch or manner of speaking.

(noun)

An example of paralanguage is the pitch of your voice.

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See paralanguage in Webster's New World College Dictionary

noun

nonverbal means of communication, such as tone of voice, laughter, and, sometimes, gestures and facial expressions, that accompany speech and convey further meaning

See paralanguage in American Heritage Dictionary 4

noun
The set of nonphonemic properties of speech, such as speaking tempo, vocal pitch, and intonational contours, that can be used to communicate attitudes or other shades of meaning.
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