twilight zone

noun

A moving line that divides the daylit side and the dark night side of a planetary body.

Meanings

twilight zone1

nountwilight zone (plural twilight zones)

plural twilight zones

  1. astronomyA moving line that divides the daylit side and the dark night side of a planetary body.

    Synonyms: terminator

  2. broadlyfigurativelyA region or context located in between others and therefore not subject to their norms.

    But is there not a twilight zone over which both Church and State put forth claims?

    2006, Charles C Marshall, The Roman Catholic Church in the Modern State
    3 more examples

    As to this right, therefore, the people have expressly created a twilight zone, in which neither nation nor state can act.

    1911, Case and Comment

    They were interesting because they represented a sort of twilight zone separating the "old days" from modern times.

    1978, Cornelius Cole Smith, Fort Huachuca: The Story of a Frontier Post

    ...the classification scheme related to goods which lay in a "twilight zone" between consumer goods and equipment or between inventory and farm products.

    1999, Grant Gilmore, Security Interests in Personal Property

    Synonyms: shadowland

  3. geographyA deteriorating area surrounding a central business district.

    Geographically speaking, the twilight zone encompasses those areas that lie between the central business district and the first ring of suburban shopping centers, many of which are comparatively obsolete.

    2012, George Sternlieb, James W. Hughes, Shopping Centers: U.S.A., page 52
  4. Synonym of mesopelagic zone (“the part of the ocean where there is very minimal light, located below the photic epipelagic zone but above the aphotic bathypelagic zone.”).

    Synonyms: mesopelagic zone

verbtwilight zone (third-person singular simple present twilight zones, present participle twilight zoning, simple past and past participle twilight zoned)

present singular third person twilight zones · participle present twilight zoning · participle past twilight zoned · past twilight zoned

  1. idiomaticintransitivetransitiveTo put or place into an indeterminate position; to be in an ambiguous, undetermined, or improper context.

    Sometimes I think she's really a gym teacher twilight-zoned into the corridors of government. I'm always surprised to see that it's a gold, clipless Cross pen she's carrying and not a gym whistle.

    1989, Jack Kendall, Playing for Keeps
  2. idiomatictransitiveTo cause to daydream or zone out; to cause to lose attention to one's surroundings.

    "I've been distant and into myself all night," I said. "The kids say I get twilight zoned."

    1997, James Patterson, Cat & Mouse

twilight zone2

nountwilight zone (plural twilight zones)

plural twilight zones

  1. figurativelyA region in which surreal, supernatural, or fantastic events occur.

    Oh, I can't talk right now, Duke. I'm in the twilight zone.

    1996 Christopher Lloyd, "Mixed Doubles," Frasier, Season 4, Episode 6 (originally aired 19 November 1996), spoken by Martin Crane (John Mahoney)
    2 more examples

    Ground controllers were uncertain for some agonizing hours what had happened to the spacecraft [...] "We have entered the twilight zone," dead-panned one jaded engineer.

    1998, Eric Chaisson, The Hubble wars: astrophysics meets astropolitics in the two-billion-dollar struggle over the Hubble Space Telescope, Harvard University Press, page 337

    Suddenly, to her astonishment and mine, it turned black and blue! I wondered if we'd just entered the twilight zone.

    2009, Steve Sisgold, What's Your Body Telling You?: Listening To Your Body's Signals to Stop Anxiety, Erase Self-Doubt and Achieve True Wellness, McGraw-Hill Professional, page 103
verbtwilight zone (third-person singular simple present twilight zones, present participle twilight zoning, simple past and past participle twilight zoned)

present singular third person twilight zones · participle present twilight zoning · participle past twilight zoned · past twilight zoned

  1. idiomaticintransitiveTo experience or perceive something bizarre or fantastic.

    Then a gnome like white haired lady, bent like a human question mark, lurched toward me and asked if I was the mailman. [...] I was Twilight Zoning.

    2016, Bill Roddey, Making ID TV's 'Too Pretty to Live' Crime Show Starring Me
  2. idiomaticintransitiveTo behave or occur in a confusing or unexpected manner.

    The service is likely from a bad twilight zone episode. [...] I did get what I required but I had to ask lots of questions as the communication was Twilight Zoning often.

    2011, David H., Beddington Registry Service review, Yelp

Synonyms & antonyms

nounA moving line that divides the daylit side and the dark night side of a planetary body.

Similar

nounA region or context located in between others and therefore not subject to their norms.

Similar

nounSynonym of mesopelagic zone (“the part of the ocean where there is very minimal light, located below the photic epipelagic zone but above the aphotic bathypelagic zone.”).

More synonyms by meaning

nounthe ambiguous region between two categories or states or conditions (usually containing some features of both)

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

twilight zone · noun, verb

Because such a zone (in the literal sense of the term) is twilit; see twilight § Etymology.

Full word history & related roots →

twilight zone · noun, verb

From the anthology television series The Twilight Zone, first aired in 1959, whose name was inspired by the astrophysical sense.

Full word history & related roots →

Translations

German Grauzone
  • Grauzoneregion or context located in between others
Polish strefa cienia
  • strefa cieniaregion or context located in between others
Cite this entry
APA

twilight zone. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/twilight%20zone

MLA

“twilight zone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/twilight%20zone. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “twilight zone,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/twilight%20zone.

Source: twilight zone on Wiktionary, CC BY-SA 4.0.