Definition of under the rose in US English:

under the rose


  • In confidence; under pledge of secrecy.

    See also sub rosa
    • ‘In ancient times a rose was attached to the ceiling of council chambers as an indication that everybody present was sworn to secrecy, sub rosa - under the rose.’
    • ‘Attendees understood that whatever was said under the rose - or sub rosa - had to remain a secret.’
    in secret, secretly, in private, privately, in confidence, confidentially, behind closed doors, surreptitiously, discreetly, furtively, clandestinely, on the quiet, on the sly, unofficially, off the record, between ourselves
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