- Wednesday written abbreviation Wed or Weds
- noun (C, U) the day between Tuesday and Thursday. In Britain, Wednesday is considered the third day of the week, and in the US it is considered the fourth day of the week: She'll arrive on Wednesday. | It happened Wednesday afternoon. | They left last Wednesday. | on Wednesdays (=each Wednesday): We play tennis on Wednesdays. | a Wednesday (=one of the Wednesdays of the year): My birthday's on a Wednesday this year. | the Wednesday BrE (=The Wednesday of the week being mentioned.): They're arriving on the Wednesday, and leaving just after Christmas.
Longman dictionary of contemporary English. 2004.