Jisho

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Noun
1. traffic light
  • しんごうき信号機
  • あか
  • あいだ
  • どうろ道路
  • わた渡る
  • Don't cross the road when the signal is red.
Noun
2. signalling mechanism; semaphore (apparatus)
Wikipedia definition
3. Traffic lightTraffic lights, which may also be known as stoplights, traffic lamps, traffic signals, signal lights, robots or semaphore, are signalling devices positioned at road intersections, pedestrian crossings and other locations to control competing flows of traffic. Traffic lights were first installed in 1868 in London, and today are installed in most cities around the world.
Read “Traffic light” on English Wikipedia
Read “信号機” on Japanese Wikipedia
Read “Traffic light” on DBpedia

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