Nightfall vs. Sunset

Nightfallnoun

The close of the day; the coming of night.

Nightfallnoun

The close of the day; the arrival of the night; the period at and just after dusk.

Nightfallnoun

the time of day immediately following sunset;

Sunsetnoun

The time of day when the sun disappears below the western horizon.

Sunsetnoun

The changes in color of the sky at sunset.

Sunsetnoun

(figuratively) The final period of the life of a person or thing.

Sunsetnoun

(attributively) Having a set termination date.

Sunsetnoun

The region where the sun sets; the west.

Sunsetverb

To phase out.

Sunsetnoun

The descent of the sun below the horizon; also, the time when the sun sets; evening. Also used figuratively.

Sunsetnoun

Hence, the region where the sun sets; the west.

Sunsetnoun

the time in the evening at which the sun begins to fall below the horizon

Sunsetnoun

atmospheric phenomena accompanying the daily disappearance of the sun

Sunsetnoun

the daily event of the sun sinking below the horizon

Sunsetadjective

of a declining industry or technology;

Sunsetadjective

providing for termination;

Sunset

Sunset, also known as sundown, is the daily disappearance of the Sun below the horizon due to Earth's rotation. As viewed from everywhere on Earth (except the North and South poles), the equinox Sun sets due west at the moment of both the Spring and Autumn equinox.