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See also: stop light

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EnglishEdit

 
English Wikipedia has an article on:
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Alternative formsEdit

EtymologyEdit

stop +‎ light

NounEdit

stoplight (plural stoplights)

  1. (US) A traffic control signal, traditionally consisting of three lights, colored green, yellow/amber, and red, meaning proceed, prepare to stop, and stop, respectively.
  2. A light on the rear of a vehicle that is activated when breaking; a break light.
    • 1973, United States. Department of the Army, Organizational Maintenance Manual (TM-9-2320-211-20)[1], page 2-52:
      The rear lamps are combined with the service stoplights and are contained in stoplight part and blackout marker light assemblies at the rear of the vehicle.

Usage notesEdit

The two-word form stop light was initially more common, but its usage plateaued around 1950, whereas usage of stoplight increased continually since that year, overtaking stop light around 1970.

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