An announcement or notification about a situation requiring attention.

सूचना

English Usage: She received an alert about the severe weather warning.

Hindi Usage: उसे गंभीर मौसम चेतावनी के बारे में एक सूचना मिली।

To warn someone of a situation or to signal that action is required.

चेतावनी देना

English Usage: He needs to alert the authorities about the suspicious activity.

Hindi Usage: उसे संदिग्ध गतिविधि के बारे में अधिकारियों को चेतावनी देनी चाहिए।