漢字四文字が結びついて、構文上ひとつの単語と同様の働きをする四字熟語集
Yojijukugo is a Japanese lexeme consisting of four kanji. English translations of yojijukugo include "four-character compound", "four-character idiom", "four-character idiomatic phrase", and "four-character idiomatic compound".
読みの五十音順
四字熟語の索引【Index of the 4-characters phrase】
