ˈwēk noun
( -s )
Etymology: Middle English weke, wike, wolk, from Old English wice, wicu, wucu; akin to Old High German wehha, wohha week, wehsal change, turn, Old Norse vika week, Gothic wiko order, turn, Latin vicis change, turn, Old Norse vīkja to move, turn, Old English wīr wire — more at wire
1.
a. : one of a series of seven-day cycles used in various calendars but especially in Jewish and Gregorian calendars and in the old Julian calendar from the time of Constantine
b.
(1) : a week beginning with a specified day or containing a specified holiday
the week of the 18th
Easter week
Christmas week
(2) : a week appointed for public recognition of some cause
Better Speech Week
Fire Prevention Week
2.
a. : any seven consecutive days
b. : a series of regular working, business, or school days during each seven-day period
c. : one of the four periods into which in accounting a month is often divided in reporting gross earnings with the first three containing seven days each and the fourth including the rest of the month
d. : a regularly recurring calendrical cycle of days unrelated to astronomical phenomena usually smaller than a month
spends a native week of four days — M.J.Herskovits
3.
a. : a week ago from a specified day
it was Sunday week when he came
she was here this day week
last Sunday week
b. : a week from a specified day
the game will be played on Saturday week
next Sunday week
school begins a week today