adverb, adverb taking the 'to' particle
fast asleep; snoring sound; grumbling sound
Onomatopoeic adverb describing deep sleep with snoring, or a low grumbling noise. Often used with 寝る or 眠る.
I was so tired that I fell fast asleep, snoring away.
I can hear loud snoring from the next room.
He was fast asleep on the sofa, snoring away.
The kids are already sound asleep, snoring.
I skipped breakfast, so my stomach is growling loudly.
Standard kana spelling for this onomatopoeic adverb.
Onomatopoeic formation from the sound of snoring or grumbling.