Also means
to sense, to detect (figurative)
Usage Note
Flairer means to smell something carefully in order to identify it, as a dog sniffs a trail. Figuratively, flairer le danger (to smell danger) means to sense a threat intuitively before it is confirmed. The related noun flair means both the sense of smell (in animals) and intuition or nose for something (in people).
Examples
"Le chien a flairé la piste du fugitif."
Natural Translation
The dog sniffed out the fugitive's trail.

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