1. Noun

   1.

   kanji compound

2. 2.

   idiom; idiomatic phrase

Example sentences

• 日本語は四字熟語って結構あるね。

  There are lots of four-character compound words in Japanese, huh?

• 四字熟語とは四文字の熟語のことです。

  A "yo-ji-juku-go" in Japanese is an idiom made from a compound of four characters.