Verb (1-dan, intransitive)
1. to get dark; to grow dark
そして、しばらくして日も暮れた。And then, after a while, it grew dark.
2. to end (of a day, year, season, etc.); to come to an end; to close
また今日も夏の一日が暮れていく。Another summer day is drawing to a close.
3. to be sunk in (e.g. despair); to be lost in (e.g. thought); to be overcome with
夫婦を知る者は皆、悲しみに暮れました。Everyone who knew the couple was overcome with grief.