訇 is a Chinese hanzi, listed here under the keyword “the sound of a crash”. It is built from 勹 (wrap) and 言 (words). It appears as a component in 5 other characters in this index.
On KumiJi Glyph Explorer, open the parts search and type “wrap” + “words”. 訇 is among the results, together with every other character containing the same shapes.
Open 訇 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.