風ふう力りょく階かい級きゅうMeaningsNoun1. wind velocity scaleKanji used風wind力power階floor (of a building)級classPitch accentふうりょくかいきゅうComposed of風ふう力りょくwind power; force (level on the Beaufort wind speed scale)Noun階かい級きゅう(social) class; rank; gradeNoun