sound, noise
音 centers on what is heard: sound or noise. It covers both intentional sounds and incidental noise.
音 is thought to derive from 言 (word, speech) with a distinguishing mark inside the mouth shape, indicating sound or voice. The modern form keeps the 立 over 日 structure.
The top 立 looks like a standing person, and the bottom 日 is a mouth. Imagine a person standing and making a sound with their mouth: 音 is sound.
For オン, picture turning on a radio and hearing sound: on -> オン.
sound; noise
sound; tone; note; ring; chirp
sound; noise
music
voice; speech; sound of a voice
(audio) recording
pronunciation
real intention; motive; true opinion; what one really thinks
noise; din
volume (sound)
sound; noise; audio; acoustics; reverberation
tone quality; sound quality
tone color; tone colour; tone quality; timbre
low tone; bass; low voice
Avalokiteshvara (Bodhisattva); Avalokitesvara; Kannon; Kwannon; Guanyin; Buddhist deity of compassion
good news; glad tidings
musician
tone deafness; amusia; having no ear for music
lead (in a cheer, toast, song, etc.); (someone's) lead
(sound of) footsteps
(sound of an) explosion or detonation; roar (of a machine)
noise (usu. unpleasant)
musical note; note symbol
high-pitched tone; soprano
interval; step
soundproofing
vowel
reading aloud
noise; sound
feeble complaint; whine
scale
on reading; on'yomi; Chinese-derived reading of a kanji
the Japanese syllabary
discord; dissonance; cacophony
light music; popular music
homophony; same pronunciation; same sound
classical music
8th note; eighth note; quaver
64th note; hemidemisemiquaver; semidemisemiquaver
(person with) no sense of direction; poor sense of locality
(saying) with one voice; unanimously; in chorus; in unison; as one
ultrasonic waves; ultrasound
supersonic speed
audio tape; magnetic tape
kanji readings