raise red flags
verb1
Figuratively, Informal To serve as a sign or signal indicating potential danger or trouble.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
verb
Figuratively, Informal To serve as a sign or signal indicating potential danger or trouble.
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.
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