red flag
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Neighbors said the property never raised red flags, though some noticed unusual activity over time.
From Los Angeles Times
As much as the start of daylight-saving time prompts some economic researchers to raise financial red flags, Shuai, the Chmura vice president, says the real issue goes beyond that.
From MarketWatch
One red flag is if the site says no prescription is necessary, since a legitimate pharmacy will always require a prescription.
From Barron's
Francisco Jeronimo, a specialist covering the Middle Eastern and European markets for data firm IDC, said the escalation raised "red flags" for technology companies which have committed "billions of dollars" to the region.
From BBC
“If your partner doesn’t want you to be involved or tries to block access, that’s a red flag.”
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.