Sundown vs. Sunset

The time of sunset.

The event or time of the disappearance of the upper circumferential edge of the sun as it sets below the horizon.

(US) Sunset.

The sky as the sun sets

(countable) A hat with a wide brim to shade the eyes from sunlight.

A decline or final phase

To experience an episode or an onset of some detrimental mental condition like agitation, anxiety, hallucination or dementia, daily at nightfall.

(Law) The automatic expiration of a statutory provision on a previously established date, in the absence of reauthorization

The setting of the sun; sunset.

(Law) Providing for an automatic expiration.

A kind of broad-brimmed sun hat worn by women.

To expire on a previously established date, as a statutory provision.

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

To provide for the expiration of (a program or agency) by means of a sunset provision.

The moment each evening when the sun disappears below the western horizon.

The changes in color of the sky before and after sunset.

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

(attributively) A set termination date.

The region where the sun sets; the west.

To phase out.

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

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

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

Atmospheric phenomena accompanying the daily disappearance of the sun

The daily event of the sun sinking below the horizon

Of a declining industry or technology;

Providing for termination;