flag up

To tell someone about a problem or important thing so they know about it.

"I wanted to flag up a few concerns before we proceed with the project."

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Hands Are Hot, Rachel Zoffness, Why Date Anyone | Fact Check for Rachel Zoffness

Armchair Expert with Dax Shepard · 3:08

Get that flag up in the air.

Oobah Butler: The Digital Mirage

Trevor Noah · 11:54

I mean, it didn't it didn't flag up.

Europe By Train with the Man in Seat 61

Rick Steves Travel Talks · 21:18

need to flag up because I use it all the

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