gaslight

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gaslight¹

  • /ˈɡæslaɪt/ UK
  • /ˈɡæsˌlaɪt/ US

Where it comes from

From gas (“flammable gaseous hydrocarbon or hydrocarbon mixture used as a fuel”) + light.

noun gaslights · gas light · gas-light

  1. countable, historical, uncountable A lamp which operates by burning piped illuminating gas (or town gas). He was renovated and refreshed, his soul was strengthened, and his countenance waxed cheerful, and he began to feel like himself again, under the brown canopy of metropolitan smoke, and among the cabs and gaslights.

    Similar: gas lamp

  2. historical, uncountable The light produced by the burning gas in such a lamp. A year since I strained my eyes very severely, and have never dared to use them much since by gaslight.

gaslight²

  • /ˈɡæslaɪt/ UK
  • /ˈɡæsˌlaɪt/ US

Where it comes from

From the 1938 stage play Gas Light by the English playwright and novelist Patrick Hamilton (1904–1962), and its 1940 and 1944 film adaptations, in which a husband attempts to convince his wife and others that she is insane by manipulating small elements of their environment. For more details, see also Gaslighting § Etymology on Wikipedia.

verb gaslights · gaslighting · gaslighted · gaslit

  1. formal, historical, transitive To manipulate someone such that they doubt their own memory, perceptions of reality, or sanity, typically for malevolent reasons. Sylvia is a beautiful woman whose business-partner husband is "gaslighting" her. (That means he's trying to drive her crazy.)

    Similar: head-game

  2. broadly, historical, informal, proscribed, transitive To deceive, trick, or lie to.

Translations

Every language

noun light produced by burning gas

Españolluz a gas, luz gaseiforme
한국어가스등불 gaseudeungbul
中文煤氣燈光 /煤气灯光 méiqì dēngguāng
Portuguêsluz/iluminação a gás
DeutschGaslicht
Ελληνικάαεριόφως aeriófos
Русскийга́зовое освеще́ние gázovoje osveščénije

noun lamp which burns piped illuminating gas

Españollámpara a gas
한국어가스등 gaseudeung, 가스램프 gaseuraempeu
日本語ガス灯 gasu-tō, ガスランプ gasu ranpu
中文煤氣燈 /煤气灯 méiqìdēng, 自來火 /自来火 zìláihuǒ
Portuguêslâmpada a gás, lampião
Françaisbec de gaz
DeutschGaslampe
Ελληνικάαεριόφως aeriófos, ανθρακαέριο anthrakaério, λάμπα αερίου lámpa aeríou
Русскийга́зовая ла́мпа gázovaja lámpa
العربيةمِصْبَاح غَاز miṣbāḥ ḡāz

verb to manipulate (someone) such that they question their own memory, perception, and sanity

Españolembocar, huevear, huevonear, hacer(lo) creer que está loco él mismo
日本語心理操作する shinrisōsa suru, ガスライティングする gasuraitingu suru
Portuguêsabusar
Françaismanipuler, gaslighter, gaslight
Deutschmit Psychotricks langsam irre machen
Italianomanipolare
Русскийгазла́йтить gazlájtitʹ

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Cite this
MLA

"gaslight." Wiktionary, via Micwyn, micwyn.com/word/gaslight. Accessed 6 Nov. 2026.

APA

gaslight. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/gaslight

Chicago

"gaslight." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/gaslight.

BibTeX
@misc{gaslight_2026,
  title = {gaslight},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/gaslight},
  urldate = {2026-11-06}
}