四よん文も字じ熟じゅく語ごMeaningsNoun1. four-character compound word (usu. idiomatic)Kanji used四four文written sentence字a character熟mature語languageComposed of四よんfour; 4Numeric文も字じletter (of an alphabet); character; writingNoun熟じゅく語ごkanji compound; idiom; idiomatic phraseNoun