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.

A contractor who offers to do the job without a building permit is a red flag.

From The Wall Street Journal • Apr. 25, 2026

“I think they need to rethink their financial plan because that’s a huge red flag they’re off track,” Bunio said.

From MarketWatch • Apr. 23, 2026

That is always a red flag for me when I’m reading an OLC opinion.

From Slate • Apr. 9, 2026

"He never had a single red flag at all."

From BBC • Apr. 7, 2026

A man was waving them on with a red flag tied to a stick.

From "The Kill Order (Maze Runner, Book Four; Origin)" by James Dashner