Home / Vocabulary / 祖 祖 Kanji meanings and readings 祖 N3 ancestor; pioneer; founder On readingソ Kun reading Radical示 Related vocabulary ✦Illustration in preparation お祖父さん N5 おじいさん grandfather; male senior citizen ✦Illustration in preparation 先祖 N2 せんぞ ancestor ✦Illustration in preparation 祖先 N2 そせん ancestor ✦Illustration in preparation 祖母 N4 そぼ grandmother ✦Illustration in preparation 祖父 N4 そふ grandfather