twilight

American  

[twahy-lahyt] / ˈtwaɪˌlaɪt /

noun

twilights plural

1. the soft, diffused light 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 prevails.

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

   the twilight of his life.

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

---

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

---

Other Word Forms

Derived Forms

• twilighty
  adjective
• twilit
  adjective

Inflected Forms

Nouns

• twilights
  plural

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

And that twilight zone has serious costs—a fact that Thomas ignores but Jackson rightly highlights.

From Slate • Jun. 23, 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

They were both in their 30s and sporting logic dictated that the twilight of their careers was fast approaching.

From The Wall Street Journal • Jun. 8, 2026

A clear view of the western sky will help observers catch Mercury before it disappears into the twilight glow.

From Science Daily • Jun. 3, 2026

Rosie is at the far end of the menagerie, and as my eyes adjust to the twilight I see someone standing beside her.

From "Water for Elephants" by Sara Gruen

Related Words

• dusk
• sunset