索 JLPT N1 Kanji 索 — cord, rope JLPT N1 10 strokes Secondary (Jōyō) Radical 糸 #1127 most frequent Manufactured Item Readings On'yomiサク Example words 捜索そうさくsearch (esp. for someone or something missing); investigation 索引さくいんindex; indices; indexes 模索もさくgroping (for); exploring for a solution