臺 is a traditional Chinese hanzi, listed here under the keyword “tower”. It is built from 吉 (lucky), 冖 (cover) and 至 (reach). It appears as a component in 7 other characters in this index.
On KumiJi Glyph Explorer, open the parts search and type “lucky” + “cover” + “reach”. 臺 is among the results, together with every other character containing the same shapes.
Open 臺 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.