twilight zone
Americannoun
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the lowest level of the ocean that light can reach.
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an ill-defined area between two distinct conditions, categories, etc., usually comprising certain features of both; an indefinite boundary.
a twilight zone between fantasy and reality.
noun
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any indefinite or transitional condition or area
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an area of a city or town, usually surrounding the central business district, where houses have become dilapidated
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the lowest level of the ocean to which light can penetrate
Etymology
Origin of twilight zone
First recorded in 1905–10
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“An officer could simply invent an accusation of criminality, leaving the green-card holder trapped in a bureaucratic twilight zone for years before they have a chance to rebut the accusation at a hearing,” Mark writes.
From Slate ● Jun. 25, 2026
Down in the backrooms twilight zone, there’s a glitchy-looking wall splashed over with distorted “McKee Road” signs.
From Salon ● Jun. 8, 2026
"It almost felt like being in the twilight zone," he added.
From BBC ● Feb. 23, 2026
They mostly live in the ocean’s twilight zone where light rarely reaches, typically considered 650 to 3,000 feet below the water’s surface.
From Los Angeles Times ● Dec. 12, 2025
Dimple felt like she was in the twilight zone.
From "When Dimple Met Rishi" by Sandhya Menon
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.