noun
A low, prolonged sound made by a person or animal expressing pain, discomfort, or displeasure.
彼は痛みでうなり声をあげた。
He let out a groan from the pain.
病人がベッドでうなり声を出している。
The patient is moaning in bed.
noun
A deep, threatening sound made by an animal, or a similar aggressive human vocalization.
犬がうなり声をあげて威嚇した。
The dog growled threateningly.
ライオンのうなり声がサバンナに響いた。
The lion's roar echoed across the savanna.
noun
A continuous low sound produced by machines, engines, wind, or electrical equipment.
エアコンのうなり声が気になって眠れない。
The hum of the air conditioner bothers me and I can't sleep.
風のうなり声が窓の外で聞こえた。
The howl of the wind could be heard outside the window.
The verb form meaning 'to groan, growl, or hum'. うなり声 is the noun form referring to the sound itself.
A shriek or scream, usually higher-pitched and more sudden than うなり声, which is a low, continuous sound.
A loud, deep rumbling or roaring sound, often from explosions or heavy machinery; more intense and thunderous than うなり声.
Compound of 唸り (unari, the continuative form of 唸る 'to groan, growl, hum') + 声 (koe, 'voice, sound'). The kanji 唸 is a phono-semantic compound with 口 (mouth) and 念 (thought, sense), but the exact historical derivation is uncertain.