1The sun as it sinks below or nears the horizon in the evening.
2A depiction or stylized representation of the sun disappearing below the horizon; specifically a heraldic representation of this.
3With the. The region or direction in which the sun sets; the west. Compare rising sun .
4"land (also country, etc.) of the setting sun": used to denote a country, region, etc., located in or associated with the west.
5The sinking of the sun below the horizon in the evening (especially as marking or representing the end of the day) or the time when this occurs; sunset. Now somewhat rare.
Either of two sunset shells (marine bivalve molluscs of the family Psammobiidae); especially Gari depressa (formerly Psammobia vespertina), found mainly in the western North Atlantic and the Mediterranean.
Mid 16th century; earliest use found in John Heywood (c1496–c1578), playwright and epigrammatist. From setting + sun.