むむ
interjection (kandoushi)
onomatopoeic or mimetic word
hum
hmm
mild surprise or doubt
see: ふふ
onomatopoeic or mimetic word
mm mm
light chuckle with mouth closed
see: うんうん
onomatopoeic or mimetic word
mm mm
agreeable sounds (sound indicating agreement)
onomatopoeic or mimetic word
mm
hmm
deep in thought
onomatopoeic or mimetic word
well
calling attention
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