traffic light

noun

: a visual signal (such as a system of colored lights) for controlling traffic

Examples of traffic light in a Sentence

Take a left at the traffic light.

Recent Examples on the Web

Cyclists must obey traffic lights and signs and go in the direction of traffic, traveling on the right side of the roadway except when making a left turn. — Sacbee.com, 31 Aug. 2026

Far from New York or Davos, leaders of some of the world’s least populous states are meeting in a placid tropical archipelago with no traffic lights. — ABC News, 30 Aug. 2026

After 27 years of the circular road reconfigurations without traffic lights or stop signs, Bryson wonders if drivers are finally adapting to roundabouts. — Susan Bromley, Freep.com, 28 Aug. 2026

Our three-color traffic light has a three-dimensional Hilbert space. — Quanta Magazine, 26 Aug. 2026

Word History

First Known Use

1912, in the meaning defined above

Rhymes for traffic light

• acolyte
• aconite
• allanite
• alunite
• amberlite
• ammonite
• amorite
• amphitrite
• analyte
• anchorite
• andesite
• anhydrite

Kids Definition

traffic light

noun

: a visual signal (as a system of green, yellow, and red lights) for controlling traffic