龟 is a simplified Chinese hanzi, listed here under the keyword “turtle or tortoise”. It is built from 𠂊 (bound up), 日 (sun) and 乚 (hidden). It appears as a component in 1 other character in this index.
On KumiJi Glyph Explorer, open the parts search and type “bound up” + “sun” + “hidden”. 龟 is among the results, together with every other character containing the same shapes.
Open 龟 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.