Definition of: evening

(ēv′ning) noun
1. The closing part of the day and beginning of the night; in a strict sense, from sunset till dark; in common speech, the latter part of the day and the earlier part of the night, until bedtime: used also adjectively: evening prayer. ♦ Collateral adjective: vesperal.
2. U.S. Dial. Afternoon until dark.
3. A closing or declining part of any state or period: the evening of life. [OE æfnung <æfnian grow to evening]