from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. In secret; privately or confidentially: held the meeting sub rosa.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Carried out secretly or confidentially
- adv. In secret or covertly; privately or confidentially
- n. Slang. Used in Workers' Compensation cases to mean covert surveillance video used to catch Workers' Compensation applicants and show that they are in fact not injured. Also spelled subrosa.
from The Century Dictionary and Cyclopedia
- n. Under the rose; privately. The rose is the emblem of silence.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. in secret or covertly
Latin sub rosā, under the rose (from the practice of hanging a rose over a meeting as a symbol of confidentiality) : sub, under + rosā, ablative of rosa, rose.(American Heritage® Dictionary of the English Language, Fourth Edition)
First attested 1654, from Latin sub rosā ("under the rose"), from sub ("under") + rosā ("rose"). (Wiktionary)