Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. An area of ambiguity between two distinct states or conditions: a twilight zone between good and evil.
Wiktionary
- n. A region or context located in between others and therefore not subject to their norms.
- n. figuratively a region in which surreal, supernatural, or fantastic events occur
WordNet 3.0
- n. the ambiguous region between two categories or states or conditions (usually containing some features of both)
- n. the lowest level of the ocean to which light can reach
Etymologies
- From the anthology television series The Twilight Zone, first aired in 1959. (Wiktionary)
Examples
“He was actually in a kind of twilight zone between respectability and bumhood.”
“Like the mystic’s eternity, or the shaman’s ecstasy, the surrealist roams the twilight zone between waking and subliminal mind, a place he calls ethernity.”
Lists
These user-created lists contain the word ‘twilight zone’.
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set phasers to...
you name the setting
I've tuned mine to be gentler and kinder
following suit is not mandatory but would be appreciatedcoddle, confuse, flummox, tap, furrow, instigate, invigorate, punnify, logical, must... act... be..., bowdlerise, laughing gas and 435 more...
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collection o' collocations
Words that are generally seen in each other's company; words that, when mentioned, bring their partners to mind.
innocent bystander, categorically deny, kung-fu grip, picky eater, natural habitat, deep sleep, horse-drawn carriage, ample bosom, perp walk, tea break, wreak havoc, strictly forbidden and 63 more...
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The Sog Collection
My big word list.
chaos, flaccid, empirical, flotsam, cacophony, grumble, assuage, awe, romance, mortality, coalesce, fortuitous and 3282 more...
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Words Covered in Faery Dust (T)
words that evoke magic, mystery, mayhem, magnificence or anything else that glimmers in the grass
tabard, tadpole, taffeta, taffy, talisman, tallgrass, tam, tamarind, tamarack, tambourine, tango, tansy and 144 more...
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AbraxasZugzwang's Words
atavism, abraxas, sisyphean, frust, fetus-in-fetu, arhythmically, queef, epidemiology, abecedarian, troglodyte, chiaroscuro, philology and 631 more...
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A Long, Strange Trip
You'll definitely need a map. Inspired by Son of Groucho's comment on Islets of Langerhans.
slough of despond, pit of despair, den of iniquity, islets of langerhans, hippocampus, boulevard of brok..., canals of hering, hesselbach's tria..., crypts of lieberkühn, angle of louis, circle of willis, traube's space and 102 more...
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Rose varieties
Rosarians have names for thousands of varieties of roses.
holy toledo, gourmet popcorn, apple jack, barbara bush, burning desire, hot tamale, tradescant, sweet surrender, sweet chariot, pinocchio, oyster pearl, olympiad and 309 more...
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states of mind: from absurdistan to zion
Countries, lands, cities that capture, or haunt, our dreams. Some of the places listed might be the names of actual localities, but here they are states of mind.
absurdistan, banana republic, utopia, mitteleuropa, new jerusalem, deseret, canaan, zion, ruritania, outer slobovia, lower slobovia, avalon and 126 more...
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Displacemattes
Mysterious places and lands I ought to visit...
antichthon, lubberland, flat earth, shangri-la, dystopia, peristalith, htrae, phaeton, pop star, asgard, melmac, annwn and 78 more...
Tweets
Looking for tweets for twilight zone.

treeseed Merriam-Webster Dictionary:
Date: 1909
1 a: an area just beyond ordinary legal and ethical limits
2: a world of fantasy, illusion, or unreality
Also
The Twilight Zone is a television anthology series created (and often written) by its narrator and host Rod Serling. Each episode (156 in the original series) is a self-contained fantasy, science fiction, or horror story, often concluding with an eerie or unexpected twist. Although advertised as science fiction, the show rarely offered scientific explanations for its fantastic happenings. It often had a moral lesson that pertained to everyday life.
Throughout the various introductions for the original series, the Twilight Zone is described as another dimension. It is "a dimension not only of sight and sound but of mind," "a place of things and ideas," "between the pit of Man's fears, and the summit of his knowledge."
_Wikipedia
Jan 26, 2008