also: ホン · ホーン
phon (unit of loudness)
Technical term in acoustics; a unit measuring perceived loudness level.
The loudness of this sound is 40 phons.
answering machine; answerphone
smartphone
cellular phone; mobile phone
mobile phone; cell phone
shoulder phone
speakerphone
phone conference; conference call
Phong shading
Standard katakana spelling for the unit of loudness.
Rare variant; may be confused with other words.
Alternate spelling; less common than フォン.
From English 'phon', a unit of loudness level.