If the question seems silly, it’s because I don’t really know Japanese, I only do WK.
Is 壮行 really a common word? It’s used in WK at level 50 as a vocab item for 壮. Jisho.org lists it as common but I know their use of this tag is quite liberal and if I search for 壮行 in Google, I only see results for dictionary sites; the rest is for 壮行会 and 壮行試合 instead. Even the example sentence in WK uses 壮行会 instead.
Maybe 壮行会 would make a better vocab item for WK then?
Because, like I said, I don’t actually know Japanese. I wouldn’t know if there are better words for 壮, but if there are, I’m all for using them instead.