宴 is a Japanese kanji written with 10 strokes, listed here under the keyword “banquet”. It is built from 安 (relax) and 日 (day). In Remembering the Kanji by James W. Heisig it is frame 203.
On KumiJi Glyph Explorer, open the parts search and type “relax” + “day”. 宴 is among the results, together with every other character containing the same shapes.
Open 宴 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.