@eribosot @riley
This is just a list of some four character words, not necessarily idiomatic #yojijukugo.
"Yojijukugo in the broad sense refers to Japanese compound words consisting of four kanji characters, which may contain an idiomatic meaning or simply be a compound noun. However, in the narrow or strict sense, the term refers only to four-kanji compounds that have a particular (idiomatic) meaning, which cannot be inferred from the meanings of the components that make them up."