keep one's lips sealed
Guard a secret
To keep one's lips sealed is to stay silent about something, especially a secret or sensitive information.
The phrase emphasizes deliberate discretion—not accidentally forgetting to mention something, but actively choosing not to speak: I know who's getting promoted, but I'm keeping my lips sealed.
Often appears as a promise or request: Can you keep your lips sealed about this?
- secretConcealed information
- sworn to secrecyObligated to withhold information
- muteWithout voice or sound
- silenceTotal lack of sound
- hushAbsence of sound
taciturn · unsaid · loyal · discretion · quiet · trustworthy · dependable · nondisclosure · reliable · classified · need to know · off the record · veiled · covert · concealment · reticent · unspoken · speechless
keep one's lips sealedspill the beans
Reveal confidential information
let the cat out of the bag · blab · tell all · divulge · blow the whistle
keep one's lips sealedrun one's mouth
Talk excessively, indiscreetly
chatter · gab · prattle · talk someone's ear off · speak one's mind
keeps, keeping, keeper, keepers, lipped, sealed, sealing, sealer, sealant