'Friday' definitions:

Definition of 'Friday'

(from WordNet)
noun
The sixth day of the week; the fifth working day [syn: Friday, Fri]

Definition of 'Friday'

From: GCIDE
  • Friday \Fri"day\, n. [AS. friged[ae]g, fr. Frigu, the gooddes of marriage; friqu love + d[ae]g day; cf. Icel. Frigg name of a goddess, the wife of Odin or Wodan, OHG. Fr[imac]atag, Icel. Frj[=a]dagr. AS. frigu is prob. from the root of E. friend, free. See Free, and Day.] The sixth day of the week, following Thursday and preceding Saturday. [1913 Webster]