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
the week of the 18th
(2)
: a week appointed for public recognition of some cause
2
a
: any seven consecutive days
b
: a series of regular working, business, or school days during each 7-day period
3
British
: a time seven days before or after a specified day
last Sunday week
Cite this Entry
“Week.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/week. Accessed 27 Oct. 2026.
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