01 n. The descent of the sun below the horizon; also, the time when the sun sets; evening. Also used figuratively.
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1.
The descent of the sun below the horizon; also, the time when the sun sets; evening. Also used figuratively.“'T is the sunset of life gives me mystical lore.” — Campbell.
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2.
Hence, the region where the sun sets; the west.
Phrases & compounds
Sunset shell —
a West Indian marine bivalve (Tellina radiata) having a smooth shell marked with radiating bands of varied colors resembling those seen at sunset or before sunrise; -- called also rising sun.