What does the word searchlight mean?

Usage examples for searchlight

  1. In a pinch, you know, we can use our searchlight. – Around the World in Ten Days by Chelsea Curtis Fraser
  2. The bridge answered the hail as the searchlight pointed forward again. – The Indian Drum by William MacHarg Edwin Balmer
  3. After a while they passed below the range of daylight, and then they turned on the searchlight. – The Second Deluge by Garrett P. Serviss