The airline invested in upgraded ground proximity warning systems after the near-miss last year.

During the approach in thick fog, the ground proximity warning system alerted the crew to an unsafe descent.

Pilots rely on terrain awareness and warning systems to avoid controlled flight into terrain during low-visibility approaches.

Before takeoff, the pilot checked that the terrain awareness and warning system was functioning to prevent controlled flight into terrain.

The teacher wagged her finger warningly at the students who were whispering during the exam.

She warn't expecting anyone, so she was genuinely surprised when the guests shouted 'Surprise!'

He warn'd the travelers of the storm, though they paid him little heed.

The old seer warneth the village of the plague that approaches.

A warningless tremor rattled the city and sent people running into the streets.

If thou warnest the villagers of the rising flood, many lives might be saved.