noun a specific type of light used in traffic control
adjective describing the type or color of light used in a signal
Signal lights are used at construction sites to direct traffic and ensure safety for workers and pedestrians.
Signal lights are used on ships to communicate with other vessels, such as navigation lights and distress signals.
Signal lights are used on aircraft for various purposes, including navigation, communication with ground personnel, and indicating the status of the aircraft.
Signal lights are used on vehicles to indicate the intention to turn, change lanes, or brake.
Signal lights are used along railroad tracks to indicate to train conductors when to stop, slow down, or proceed with caution.
A writer may use the term 'signal light' in a metaphorical sense to indicate a turning point or key moment in a story.
A psychologist may use the term 'signal light' as a metaphor for a cue or indicator in a therapeutic setting, signaling a need for further exploration or intervention.
A traffic engineer may use the term 'signal light' to refer to a traffic signal or traffic light used to control the flow of vehicles at intersections.
A marine biologist may use the term 'signal light' to refer to a light used on buoys or other marine structures to aid navigation and communication at sea.