Dawn vs. Twilight

Dawnverb

(intransitive) To begin to brighten with daylight.

Dawnverb

(intransitive) To start to appear or be realized.

Dawnverb

(intransitive) To begin to give promise; to begin to appear or to expand.

Dawnnoun

(uncountable) The morning twilight period immediately before sunrise.

Dawnnoun

(countable) The rising of the sun.

Dawnnoun

(uncountable) The time when the sun rises.

Dawnnoun

(uncountable) The beginning.

Dawnverb

To begin to grow light in the morning; to grow light; to break, or begin to appear; as, the day dawns; the morning dawns.

Dawnverb

To began to give promise; to begin to appear or to expand.

Dawnnoun

The break of day; the first appearance of light in the morning; show of approaching sunrise.

Dawnnoun

First opening or expansion; first appearance; beginning; rise.

Dawnnoun

the first light of day;

Dawnnoun

the earliest period;

Dawnnoun

an opening time period;

Dawnverb

become clear or enter one's consciousness or emotions;

Dawnverb

appear or develop;

Dawnverb

become light;

Dawn

Dawn is the time that marks the beginning of twilight before sunrise. It is recognized by the appearance of indirect sunlight being scattered in Earth's atmosphere, when the centre of the Sun's disc has reached 18° below the observer's horizon.

Twilightnoun

The soft light in the sky seen before the rising and (especially) after the setting of the sun, occasioned by the illumination of the earth’s atmosphere by the direct rays of the sun and their reflection on the earth.

Twilightnoun

The time when this light is visible; the period between daylight and darkness.

Twilightnoun

(astronomy) The time when the sun is less than 18° below the horizon.

Twilightnoun

Any faint light through which something is seen; an in-between or fading condition.

Twilightadjective

Pertaining to or resembling twilight; faintly illuminated; obscure.

Twilightverb

To illuminate faintly.

Twilightnoun

The light perceived before the rising, and after the setting, of the sun, or when the sun is less than 18° below the horizon, occasioned by the illumination of the earth's atmosphere by the direct rays of the sun and their reflection on the earth.

Twilightnoun

faint light; a dubious or uncertain medium through which anything is viewed.

Twilightadjective

Seen or done by twilight.

Twilightadjective

Imperfectly illuminated; shaded; obscure.

Twilightnoun

the time of day immediately following sunset;

Twilightnoun

the diffused light from the sky when the sun is below the horizon but its rays are refracted by the atmosphere of the earth

Twilightnoun

a condition of decline following successes;

Twilightadjective

lighted by or as if by twilight;

Twilight

Twilight on Earth is the illumination of the lower atmosphere when the Sun is not directly visible because it is below the horizon. Twilight is produced by sunlight scattering in the upper atmosphere, illuminating the lower atmosphere so that Earth's surface is neither completely lit nor completely dark.