A shrill alarm went off, terribly loud in the confined space.

A display of confidence in the nation's safety, perhaps, and therefore better than printing shrill alarms?

As if in reply, a nearby console issued a shrill alarm.

From behind the doors Burke heard a shrill alarm.

A beeper went off like an alarm, shrill and piercing.

A moment later, a loud, shrill alarm began to blare.

But some diplomats cautioned against sounding too shrill an alarm.

He lay there fighting for breath, a shrill alarm, Don't let them bite you!

It sounds a shrill alarm when anything within 30 feet, including itself, is stolen.

Outside his door, a shrill alarm went off.