What is the meaning of Twilight?

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.

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

Any faint light through which something is seen.

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

An in-between or fading condition through which something is perceived.

Pertaining to or resembling twilight; faintly illuminated; obscure.

To illuminate faintly.

Source: wiktionary.org