Home / Vocabulary / 酸 酸 Kanji meanings and readings 酸 N1 acid; bitterness; sour; tart On readingサン Kun readingす.い Radical酉 Related vocabulary ✦Illustration in preparation 酸 N1 さん acid ✦Illustration in preparation 酸化 N1 さんか oxidation ✦Illustration in preparation 酸性 N2 さんせい acidity ✦Illustration in preparation 酸素 N3 さんそ oxygen