- Main Entry:
- week

- Pronunciation:
-
\ˈwēk\
- Function:
- noun
- Etymology:
- Middle English weke, from Old English wicu, wucu; akin to Old High German wehha week and perhaps to Latin vicis change, alternation, Old High German wehsal exchange
- Date:
- before 12th century
1 a: any of a series of 7-day cycles used in various calendars; especially : a 7-day cycle beginning on Sunday and ending on Saturday b (1): a week beginning with a specified day or containing a specified holiday <Easter week> <the week of the 18th> (2): a week appointed for public recognition of some cause <Fire Prevention Week>2 a: any seven consecutive days b: a series of regular working, business, or school days during each 7-day period3: a time seven days before or after a specified day <last Sunday week>