searchlight

/'sə:tʃlait/

Thân thiện

A searchlight sweeps across the night sky from a watchtower.

Definition

Noun: 1. A powerful, directional light source: A searchlight is a device that produces a very strong, focused beam of light, typically mounted on a swivel so it can be pointed in any direction to illuminate a specific area or object, often used for security, military, or signaling purposes.

Usage

A "searchlight" is used to describe the physical device or its beam. It is a countable noun. - The prison's perimeter was guarded by towers with powerful searchlights. - A searchlight swept across the night sky, looking for enemy aircraft. - The beam from the searchlight cut through the fog.

Advanced Usage

• "To be in/under the searchlight": To be the subject of intense scrutiny or public attention.
  • The company's financial dealings are now in the searchlight of the media.

Variants and Related Words

• Searchlighting (gerund/noun): The act or operation of using a searchlight.
  • The constant searchlighting made it impossible for the ships to approach undetected.

Synonyms

• Floodlight: A broad-beamed, high-intensity light. (Note: A floodlight typically illuminates a wide area, while a searchlight projects a focused, directional beam.)
• Beacon: A light or other visible signal used for warning or guidance.

Idioms and Phrases

• "Like a searchlight": Used to describe something that is very revealing, penetrating, or intense in its focus.
  • Her questions were like a searchlight, exposing the truth we tried to hide.

Học thuật

Noun

1. a light source with reflectors that projects a beam of light in a particular direction