ビューン, びゅーん, びゅうん, ビュウーン, ビューンッ, ビュウン, びゅーんっbyuun
adverb
Study it in Yanamino
Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences