索 is a Chinese hanzi, listed here under the keyword “large rope”. It is built from 十 (ten), 冖 (cover) and 糸 (silk). It appears as a component in 3 other characters in this index.
On KumiJi Glyph Explorer, open the parts search and type “ten” + “cover” + “silk”. 索 is among the results, together with every other character containing the same shapes.
Open 索 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.