音

imitative sound (in film, theatre, etc.); sound effect

good news; glad tidings

Christianity

gospel (teachings or revelations of Christ)

low tone; bass; low voice

very loud voice

warning sound

Avalokiteshvara (Bodhisattva); Avalokitesvara; Kannon; Kwannon; Guanyin; Buddhist deity of compassion

ringtone (of mobile phones, portable phones, cellphones, etc.)

Linguistics

allophone

strange noise

ultrasonic waves; ultrasound

lead (in a cheer, toast, song, etc.); (someone's) lead

folk song and dance performed by a group

leader of a group of wind instruments (in gagaku)

high-pitched tone; soprano

sound source; sound generator; tone generator

audio; audio file; recording

sound wave

very low frequency sound; heavy bass sound; low-register sound

feeble complaint; whine

Common noun; Nouns which may take the genitive case particle 'no'; Adjectival nouns or quasi-adjectives (keiyodoshi)

tone deafness; amusia; having no ear for music

Noun, used as a suffix

having no sense of (e.g. direction); being hopeless when it comes to (e.g. computers); -illiterate

loud sound; loud reverberation

tone; beep

Music

interval; step

Colloquial

pitch; key

warning sound

a sound; one sound

Computing

notification sound

musical note; note symbol

phonetic symbol (incl. the kanji and kana-doubling symbols, vowel-lengthening symbol, etc.)

part of a kanji for which the role is primarily to represent the pronunciation (as opposed to the meaning)

reading aloud

reading (a kanji) by its Chinese-derived pronunciation