traffic light

A road signal with colored lights that tells drivers and people walking when to stop or go.

• The traffic light is red.
• We stopped when the traffic light changed.
• Several traffic lights were broken after the storm.

Similar words: stoplight, traffic signal

Common phrases: red traffic light, broken traffic light, traffic light changes

A place where roads meet and colored signals control when people can cross or drive through.

• Turn left at the next traffic light.
• There’s a café just beyond the traffic lights.
• Go straight through two traffic lights, then turn right.

Similar words: signalized junction, signalized intersection

Common phrases: next traffic light, at the traffic light

A system using red, yellow, and green to show how safe, good, or ready something is.

• The report uses a traffic light system.
• Traffic light labels show which foods contain too much salt.
• Each project received a traffic light rating for its progress.

Similar words: color coding

Common phrases: traffic light system, traffic light rating, traffic light labels

Colored dots beside printed stamps that let printers check whether the colors are correct.

• The stamp sheet has traffic lights in its margin.
• Collectors often keep the traffic lights attached to their stamps.
• The printer checked the traffic lights for color accuracy.

Similar words: color control dots

Common phrases: stamp traffic light, traffic light dots

A pattern in Conway’s Game of Life with four blinking groups equally spaced around a center.

• The simulation produced a traffic light.
• Each traffic light contains four blinkers around a central point.
• After several generations, two traffic lights appeared on the grid.

Common phrases: traffic light pattern, stable traffic light