chirping of insects; insect sounds
Refers to the characteristic calls and sounds made by insects, especially crickets, cicadas, and bell crickets, often appreciated in Japanese culture as a seasonal marker of autumn.
I like taking a walk on autumn nights while listening to the chirping of insects.
In this park, you can hear many insect sounds in the summer.
Compound of 虫 (むし, insect) + の (possessive particle) + 音 (ね, sound). The reading ね for 音 is an older native Japanese reading often used in poetic or traditional contexts.