Synonym Nuance VS
How to say "Secret" in Japanese
Both words can translate to "secret", but which should you choose?
Japanese Option A
密か
ひそか (hisoka)
N2 / CEFR Syllabus
VS
Japanese Option B
口裏
くちうら (kuchiura)
N2 / CEFR Syllabus
Nuance Contrast & Translation Difference
When translating "secret" into Japanese, you must choose carefully between 密か and 口裏.
In Japanese, 密か (ひそか (hisoka)) is typically associated with "secret, private, covert" (Syllabus Level: N2) and represents Describes something done secretly, privately, or stealthily, without others knowing or noticing. Often used adverbially as 「密かに.
On the other hand, 口裏 (くちうら (kuchiura)) maps to "secret understanding; concerted story; alibi (often in the context of conspiring)" (Syllabus Level: N2) and represents Usually used in phrases like 口裏を合わせる. A literal translation of "secret" can often sound unnatural to native Japanese speakers if mixed up!
Bilingual Context for "密か"
彼は密かにその計画を進めていた。
He was secretly moving forward with the plan.
Bilingual Context for "口裏"
二人は警察に怪しまれないよう、口裏を合わせた。
The two coordinated their stories so as not to be suspected by the police.
Nuance Mastery Quiz
Which Japanese word perfectly fits this blank space?
Fill in the blank: "彼は ＿＿＿ にその計画を進めていた。" (Meaning: "He was secretly moving forward with the plan.")
🎉 Correct Answer!
Remember: "密か" fits here because it means "secret, private, covert" in the context of: "He was secretly moving forward with the plan.". "口裏" represents "secret understanding; concerted story; alibi (often in the context of conspiring)".