3 文書を見つけるための辞書。

• on the sly, furtively
• ひっそり, ひそかに, こっそりと
• in a furtive manner; "the soldiers were furtively crawling through the night"
• こそこそした態度で

• sneakily, surreptitiously
• コソコソと, こっそりと, 隠れて
• in a surreptitious manner; "he was watching her surreptitiously as she waited in the hotel lobby"
• コソコソと

• confidentially
• 内内, ないしょで, こっそりと, 内密に, 内々
• in a confidential manner; "spoke to him intimately and confidentially"
• 秘密のさまの