- ((keep)) a secret
内緒で 〔こっそりと〕in secret, secretly;〔秘密を打ち明けて〕confidentially
- 内緒の話
- a secret [confidential] talk
- これは内緒の話だがいいもうけ口があるんだ
- Between you and me, I know of a way to make a lot of money.
- 妻には内緒にしておいてください
- Please 「keep it a secret from [don't tell] my wife.
- 少年は内緒でたばこを吸っていた
- The boy smoked in secret.
- 内緒で秘密を打ち明けられた
- He confided the secret to me.
- 医者に内緒で病院を抜けだした
- I slipped out of the hospital without my doctor's knowledge.
- 内緒事a secret; a confidential [private] matter
- 内緒話a confidential talk
- 二人は何やら内緒話をしていた
- They were talking secretively [confidentially] together.
- 内緒話があります
- I have something to 「talk to [tell] you about confidentially./A word in your ear.