'Hours' definitions:

Definition of 'hours'

From: WordNet
noun
A period of time assigned for work; "they work long hours"
noun
An indefinite period of time; "they talked for hours"

Definition of 'Hours'

From: GCIDE
  • Hours \Hours\, n. pl. [A translation of L. Horae (Gr. ?). See Hour.] (Myth.) Goddess of the seasons, or of the hours of the day. [1913 Webster]
  • Lo! where the rosy-blosomed Hours, Fair Venus' train, appear. --Gray. [1913 Webster]