[fon] /fɒn/

a unit for measuring the apparent loudness of a sound, equal in number for a given sound to the intensity in decibels of a sound having a frequency of 1000 cycles per second when, in the judgment of a group of listeners, the two sounds are of equal loudness.
variant of before a vowel:
a unit of loudness that measures the intensity of a sound by the number of decibels it is above a reference tone having a frequency of 1000 hertz and a root-mean-square sound pressure of 20 × 10–6 pascal
Also phonet. phonetics

phon- pref.
Variant of phono-.


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  • Phonate

    [foh-neyt] /ˈfoʊ neɪt/ verb (used with or without object), phonated, phonating. 1. Phonetics. to provide (a sound source, and hence the pitch) for a given voiced continuant or vowel, through rapid, periodic glottal action. 2. to vocalize. /fəʊˈneɪt/ verb 1. (intransitive) to articulate speech sounds, esp to cause the vocal cords to vibrate in the […]

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    [foh-nuh-thon] /ˈfoʊ nəˌθɒn/ noun 1. a campaign to solicit funds or support in which volunteers make calls to prospective donors or supporters.

  • Phonation

    [foh-ney-shuh n] /foʊˈneɪ ʃən/ noun, Phonetics. 1. rapid, periodic opening and closing of the glottis through separation and apposition of the vocal cords that, accompanied by breath under lung pressure, constitutes a source of vocal sound. 2. (not in technical use) voice; vocalization. Compare (defs 15, 16). phonation pho·na·tion (fō-nā’shən) n. The utterance of sounds […]

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