Word.ws English Dictionary

warning light

warning light noun: a light on a dashboard or control panel that lights up when something undesirable has happened, or is about to happen; or if placed on a tall structure, to warn aircraft of its presence.

Noun

warning light (plural warning lights)

  1. A light on a dashboard or control panel that lights up when something undesirable has happened, or is about to happen; or if placed on a tall structure, to warn aircraft of its presence.
    • Additional warning lights are provided to indicate diesel engine shut-down, traction motor blower failure or high engine cooling water temperature. On the assistant's side of the cab, another light shows should the train heating boiler shut down.1958 June, “Main-Line Diesel-Electric Locomotives for the Eastern Region”, in Railway Magazine, page 395
    Synonyms:
    idiot light

Synonyms of warning light

Forms of warning light

pluralwarning lights

Questions about warning light

What does warning light mean?
Warning light means a light on a dashboard or control panel that lights up when something undesirable has happened, or is about to happen; or if placed on a tall structure, to warn aircraft of its presence.
What part of speech is warning light?
Warning light is a noun.
What is the plural of warning light?
The plural of warning light is warning lights.

Words near warning light in the dictionary

  1. warning bells
  2. warning card
  3. warning cards
  4. warning coloration
  5. warning colorations
  6. warning light
  7. warning lights
  8. warning shot
  9. warning shots
  10. warning sign
  11. warning signs

Source and license

Adapted from Wiktionary: warning light (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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