底 is a Chinese hanzi, listed here under the keyword “bottom”. It is built from 广 (wide) and 氐 (name of an ancient tribe). It appears as a component in 3 other characters in this index.
On KumiJi Glyph Explorer, open the parts search and type “wide” + “name of an ancient tribe”. 底 is among the results, together with every other character containing the same shapes.
Open 底 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.