Word.ws English Dictionary

deadlight

deadlight noun: a strong (often wooden) shutter fitted over a porthole, that can be closed in bad weather to keep water out and discourage the glass windows from breaking.

Noun

deadlight (plural deadlights)

  1. A strong (often wooden) shutter fitted over a porthole, that can be closed in bad weather to keep water out and discourage the glass windows from breaking.
  2. A deck prism, a device to allow light into the cabin of boat through the deck.
  3. (archaic, figuratively) An eye.
    • Here you comes and tells me of it plain; and here I let him give us all the slip before my blessed deadlights!1881–1882, Robert Louis Stevenson, Treasure Island, London; Paris: Cassell & Company, published 14 November 1883, →OCLC
  4. (archaic, figuratively) An eyelid.
    • He had one hand on the bounce bottle—and he'd never let go of that since he got back to the table—but he had a handkerchief in the other and was swabbing his deadlights with it.1913, Joseph C[rosby] Lincoln, chapter VI, in Mr. Pratt’s Patients, New York, N.Y.; London: D[aniel] Appleton and Company, →OCLC

Forms of deadlight

pluraldeadlights
alternative formdead-light
alternative formdead light

Origin of deadlight

From dead + light.

Questions about deadlight

What does deadlight mean?
Deadlight means a strong (often wooden) shutter fitted over a porthole, that can be closed in bad weather to keep water out and discourage the glass windows from breaking.
What part of speech is deadlight?
Deadlight is a noun.
What is the plural of deadlight?
The plural of deadlight is deadlights.

Words near deadlight in the dictionary

  1. deadlifted
  2. deadlifter
  3. deadlifters
  4. deadlifting
  5. deadlifts
  6. deadlight
  7. deadlights
  8. deadlihood
  9. deadlike
  10. deadlily
  11. deadline

Source and license

Adapted from Wiktionary: deadlight (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: “deadlight.” Word.ws, https://word.ws/deadlight. Based on Wiktionary, CC BY-SA 4.0.