kun-kun
A dog sniffing with its nose at something, or making soft, sad whimpering sounds. Can express a dog investigating a scent trail or crying softly because it misses its owner.
💡A dog at the front door waiting for its owner — 'The dog was whimpering kun-kun by the door, waiting for its master.'
犬がくんくん鼻を鳴らしてにおいを嗅いでいる。
The dog was sniffing kun-kun, following a scent.
The dog pressed its nose to the ground, sniffing ___ along the trail.
犬が地面に鼻を押しつけて、○○とにおいを嗅ぎながら歩いていた。