四字熟語は漢検1級内容で大変大きな割合を占めている：名目上それらが直接出題されている漢検の第四部以外に、漢字検定1級の別の部分で出されている様々な多くの語彙・熟語も四字熟語に由来していますので、漢検1級攻略において四字熟語を自家薬籠中にすることは極めて大きな役割を果たしています。
“Yojijukugo” or four-character kanji expressions, usually derived from classical Chinese texts, play an extremely important role in material for the Kanji Kentei test in general and its level 1 in particular: knowledge of Yojijukugo is required not only in part 4 (where they are explicitly given for questions), but other parts of the test as well where vocabulary based on Yojijukugo can be featured as part of problems for reading, writing, proverbs, antonyms-synonyms.
Here I will introduce ten different Yojijukugo which meaning I found particularly interesting.