Etymologically
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flashlight

This is the current revision of this entry, as edited by bogdan on 31 October 2026 at 15:25. This address is a permanent link to this version.
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Pronunciation

  • /ˈflæʃˌlaɪt/[1]

Etymology

It is formed from English flash + light.[2][3][4] The OED takes the first part as the noun flash, Etymonline as the verb.[2][3]

Earliest recorded meaning

A light that flashes briefly and regularly, used for signals and in lighthouses: 1829, in the Aberdeen Journal.[2] Etymonline and Merriam-Webster date the word to 1886.[3][5]

Semantic evolution

The lighthouse light came first.[2][3] In photography the word was used of a device or preparation giving a brief, intense light for taking pictures, from 1887 in the OED and by 1892 in Etymonline,[2][3] and Merriam-Webster also has the sense of a photograph taken by such a light.[6] The portable electric lamp powered by batteries in a cylindrical case is recorded from 1901 in the OED, from 1905 in Etymonline.[2][3] This sense is chiefly North American: in Britain the lamp is usually a torch.[2][7][3] The figurative use, something that throws light on a situation, dates from 1898, and the verb, to light up or photograph with a flashlight, from 1901.[2]

Timeline

  • 1829 – a flashing signal light, as in a lighthouse.[2]
  • 1886 – first date in Etymonline and Merriam-Webster.[3][5]
  • 1887 – photography, a device giving a brief intense flash.[2]
  • 1898 – figurative, something that highlights a situation.[2]
  • 1901 – a portable battery lamp; the verb.[2]
  • 1905 – the hand-held electric lamp, in Etymonline.[3]

Meanings

Noun

  1. (chiefly US and Canada) A small portable electric lamp powered by batteries; in Britain a torch: He shone a flashlight under the porch.[7][8][6][2]
  2. (photography) The brief, bright light from a flash unit, or the device that produces it.[7][8][2]
  3. A light that flashes on and off at regular intervals, as in a lighthouse or signal lamp.[7][8][5][2]

Verb

  1. To light up something with a flashlight, or to photograph it by flashlight.[2]

Word family

  • flashlight fish

References

  1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g h i j k l m n o p Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
  3. ^ a b c d e f g h i Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  4. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
  5. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
  6. ^ a b Merriam-Webster's Collegiate Dictionary (2003), 11th ed., Springfield, Mass.: Merriam-Webster
  7. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins
  8. ^ a b c The American Heritage Dictionary of the English Language (1992), 3rd ed., Boston: Houghton Mifflin