the symbol or banner of a left-wing revolutionary party.
a danger signal.
something that provokes an angry or hostile reaction:
The talk about raising taxes was a red flag to many voters.
Also called powder flag. Nautical. a red burgee, designating in the International Code of Signals the letter “B,” flown by itself to show that a vessel is carrying, loading, or discharging explosives or highly inflammable material.
(initial capital letters) a war game the U.S. Air Force holds several times each year at Nellis Air Force Base, Nevada, to train personnel in air combat.
verb (used with object), red-flagged, red-flagging.
to mark or draw attention to for a particular purpose:
The department has red-flagged the most urgent repair work to be done.
to provoke the attention of; alert; arouse:
The animal's refusal to eat red-flagged the keeper that something was wrong.
of or pertaining to a red flag.
intended or serving to emphasize, warn, incite, or provoke.