Dictionary

week

noun \ˈwēk\

: a period of seven days

: any period of seven days in a row

: the days from Monday through Friday when people usually work

Full Definition of WEEK

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>

Examples of WEEK

  1. the last week of the month
  2. I can meet you sometime next week.
  3. The menu changes each week.
  4. You can never be sure what will happen from one week to the next.
  5. The menu changes from week to week.
  6. The baby is two weeks old. [a two-week .
  7. I'll be on vacation for two weeks starting this Tuesday.
  8. That car rents for $200 a week.
  9. I arrived a week ago.
  10. It took him two weeks to paint the house.

Origin of WEEK

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
First Known Use: before 12th century
WEEK Defined for Kids

week

noun \ˈwēk\

Definition of WEEK for Kids

1
:  seven days in a row especially beginning with Sunday and ending with Saturday
2
:  the working or school days that come between Sunday and Saturday
July 03, 2015
interpellate Hear it
to formally question a public official
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears