AnalyzerSentence analysis3SpansSentence秘密にする1000 character limitAnalyzeSentence秘ひ密みつにするSpan Details秘ひ密みつsecret; confidential; private; mystery; secret (to success, etc.); key; esoteric teachingsnoun, na-adjectiveにdirection, time, indirect object, or target markergrammarするlight/support verb with a noun or noun-like phrasegrammar