Flag up means to draw attention to something, especially a potential problem or issue that needs consideration: I wanted to flag up a concern about the timeline.
The phrase is more common in British than American English, where flag alone often serves the same purpose: Let me flag that for the committee.
1. alert — signal, Message-conveying cue; notify (Formally communicate information); warn (Give notice of peril); indicate (Signal or point to); identify · report · raise · draw attention · point out · call out · mention · note · highlight · communicate
2. concern — issue, Point of contention; problem (Matter requiring resolution); risk (Possibility of harm); worry (Troubled mental state); danger · hazard · threat · error · discrepancy · anomaly · irregularity · mistake · fault · flaw
Opposites
attention and awarenessflag up ≠ ignore Refuse to notice; overlook · disregard · miss · neglect · let slide
disclosure and concealmentflag up ≠ bury Place beneath soil; conceal · hide · suppress · cover up · hush up
Family
flag, up, flags, flagged, flagging, flagpole, flagship, unflagging
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- Timeless · Everyday, not technical · Rated G