竄 is a traditional Chinese hanzi, listed here under the keyword “run away”. It is built from 穴 (cave) and 鼠 (rat). It appears as a component in 3 other characters in this index.
On KumiJi Glyph Explorer, open the parts search and type “cave” + “rat”. 竄 is among the results, together with every other character containing the same shapes.
Open 竄 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.