透 JLPT N1 Kanji 透 — transparent, permeate, filter, penetrate JLPT N1 10 strokes Secondary (Jōyō) Radical 辵 #1035 most frequent Readings On'yomiトウ Kun'yomiす.くす.かすす.けるとう.るとう.す Example words 透明とうめいtransparency; cleanness 透き通るすきとおるto be(come) transparent