窒 is a Japanese kanji written with 11 strokes, listed here under the keyword “plug up”. It is built from 穴 (hole) and 至 (climax). In Remembering the Kanji by James W. Heisig it is frame 1418.
On KumiJi Glyph Explorer, open the parts search and type “hole” + “climax”. 窒 is among the results, together with every other character containing the same shapes.
Open 窒 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.