物音
ものおと · monooto · JLPT N3 · noun
sound
🔊 物音 = thing (物 mono) + sound (音 oto): the sound a thing makes
物 (mono) means thing or object, and 音 (oto) means sound. Together they mean a noise from something unseen, like a creak or a rustle. People often say 物音がする: there's a noise.