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.

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

On Feb. 4, it broke above a five-month cup-base pivot of $149.89, but the breakout quickly fizzled—a red flag.

From Barron's • Apr. 6, 2026

Another red flag: “free” versions of videogames you would normally pay for, or streaming-video apps offering you free access to paid content: sports, Netflix, HBO, etc.

From The Wall Street Journal • Apr. 3, 2026

The National Weather Service had issued a red flag warning for the Sierra Nevada range today, as they did almost every other day in the fall.

From "Two Degrees" by Alan Gratz