To say something under the rose means to say it privately or confidentially, and in this context it is implied that whatever is said in secret must remain a secret.
Given the statement "Attendees understood that whatever was said privately or confidentially - or sub rosa - had to remain a secret.", is the statement "Attendees understood that whatever was said under the rose - or sub rosa - had to remain a secret." is true?
- Yes
- No
- I don't know