0 a device that makes a loud ringing sound to warn of danger:
An alarm bell goes off if the monitor's readings fall below 40.
Even if his account is not entirely accurate, it's an alarm bell.
When Frank suggested coming to stay for a couple of days, alarm bells started to ring in my head.
Alarm bells went off in the industry when the law was proposed.
Her statement should have rung alarm bells but nobody took the precaution of checking the facts.
Regardless of where the bacteria came from, the test results should sound an alarm bell.
This move is likely to raise alarm bells with the French government.
Her description of her symptoms set alarm bells ringing.
Healthcare workers have been sounding the alarm bell about the shortage of hospital beds for several years.
She is ringing the alarm bells about the world's lack of action on climate change.
If anything goes wrong, don't hesitate to ring the alarm bell.
Security experts say the attacks represent an alarm bell for the country's intelligence agencies.
We've found that there are far fewer tigers than we'd thought in those forests and that's an alarm bell for us.
