twilight

American  

[twahy-lahyt] / ˈtwaɪˌlaɪt /

noun

1. the soft, diffused light lights from the sky when the sun is below the horizon, either from daybreak to sunrise or, more commonly, from sunset to nightfall.

2. the period in the morning or, more commonly, in the evening during which this light lights prevails.

3. a terminal period, especially after full development, success, etc..

   the twilight of his life.

4. a state of uncertainty, vagueness, or gloom.

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adjective

1. of, relating to, or resembling twilight; dim; obscure.

   in the twilight hours.

2. appearing or flying at twilight; crepuscular.

twilight British  

/ ˈtwaɪˌlaɪt, ˈtwaɪˌlɪt /

noun

1. the soft diffused light occurring when the sun is just below the horizon, esp following sunset

2. the period in which this light occurs

3. the period of time during which the sun is a specified angular distance below the horizon (6°, 12°, and 18° for civil twilight , nautical twilight , and astronomical twilight , respectively)

4. any faint light

5. a period in which strength, importance, etc, are waning

   the twilight of his life

6. (modifier)

   1. of or relating to the period towards the end of the day

      the twilight shift

   2. of or relating to the final phase of a particular era

      the twilight days of the Bush presidency

   3. denoting irregularity and obscurity

      a twilight existence

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Other Word Forms

• twilighty adjective
• twilit adjective

Etymology

Origin of twilight

First recorded in 1375–1425; late Middle English; twi- + light ¹

Explanation

The time just after sunset, when the light is half-faded, but the world is not yet totally dark, is twilight. If you are between two states, like asleep and awake, that can also be called a twilight moment. Twilight comes just before the night falls. The early light, just before sunrise, is also technically called "twilight" but most people call it "dawn." The prefix twi- might be a clue that twilight happens twice a day, or it could mean "half," as in the half-light of this time. Something that is declining can be described as twilight — like the twilight of the trend of wearing plastic clogs favored by nurses and chefs.

Example Sentences

In the far north of the UK, particularly northern Scotland, there will be close to 19 hours of daylight, with twilight lingering well into the night and barely any true darkness.

From BBC • Mar. 27, 2026

The receiver class includes three household names in the twilight of their careers: Mike Evans, Deebo Samuel and Stefon Diggs.

From Los Angeles Times • Mar. 9, 2026

By then I expect these punchy little runabouts will be cherished as classics of the era, the twilight of the petrol gods.

From The Wall Street Journal • Mar. 6, 2026

Or, God forbid, should I find someone to marry just for the purpose of taking care of me in my twilight years?

From MarketWatch • Feb. 12, 2026

The sun set, and the woods grew darker, but before the last of the twilight was gone the moon rose.

From "Little House in the Big Woods" by Laura Ingalls Wilder

Related Words

• dusk
• sunset