冢 is a Chinese hanzi, listed here under the keyword “burial mound”. It is built from 冖 (cover) and 豖 (a shackled pig). It appears as a component in 1 other character in this index.
On KumiJi Glyph Explorer, open the parts search and type “cover” + “a shackled pig”. 冢 is among the results, together with every other character containing the same shapes.
Open 冢 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.