Word.ws English Dictionary

colour light signals

colour light signals is the plural of colour light signal.

Meaning of colour light signal

Noun

colour light signal (plural colour light signals)

  1. (UK) An electric railway signal with colour aspects, showing either red or green in a 2-aspect signal, with the addition of a yellow or double yellow aspect (meaning caution) in 3- and 4-aspect signals.
    • Colour-light signals, for both day and night work, came into use at a much later date, and their first use on any scale in this country was on the London underground railways, where the principle adopted was largely American in origin. But although light signalling is credited to America, one of...1955 April, R. H. Warring, “Some Early Railway Signals”, in Railway Magazine, pages 231-232
    Synonyms:
    colour light

Questions about colour light signals

What is colour light signals the plural of?
Colour light signals is the plural of colour light signal.

Words near colour light signals in the dictionary

  1. colour inside the lines
  2. colour killer
  3. colour killers
  4. colour light
  5. colour light signal
  6. colour light signals
  7. colour lights
  8. colour man
  9. colour men
  10. colour of someone's money
  11. colour outside the lines

Source and license

Adapted from Wiktionary: colour light signals (page history and authors); colour light signal (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “colour light signals.” Word.ws, https://word.ws/colour_light_signals. Based on Wiktionary, CC BY-SA 4.0.