一いち角かく形けいMeaningsNoun1. monogon; henagonOther readings一いっ角かっ形けいKanji used一one角angle形shapeComposed of一いちone; 1; best; first; foremost; beginning; start; a (single); one (of many); ace; …Numeric角かく形けい-gon (as in pentagon, hexagon, etc.)Suffix