adverb (fukushi), adverb taking the 'to' particle, noun (common) (futsuumeishi), noun or participle which takes the aux. verb suru, onomatopoeic or mimetic
1. opening (one's mouth) wide; saying "aah"
adverb (fukushi), adverb taking the 'to' particle, noun or participle which takes the aux. verb suru, onomatopoeic or mimetic