weeka period of seven days: It has been a week since I saw him.Not to be confused with:weak ? not strong; feeble; lacking firmness or force of will: The illness had made her weak.Abused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embreeweek (w?k)n.1. a. A period of seven days: a week of rain.b. A seven-day calendar period, especially one starting with Sunday and continuing through Saturday: this week.2. a. A week designated by an event or holiday occurring within it: commencement week.b. A week dedicated to a particular cause or institution: Home Safety Week.3. The part of a calendar week devoted to work, school, or business: working a three-day week.4. a. One week from a specified day: I’ll see you Friday week.b. One week ago from a specified day: It was Friday week that we last met.[Middle English weke, from Old English wicu; see weik- in Indo-European roots.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.week (wi?k) n1. a period of seven consecutive days, esp one beginning with Sunday. 2. a period of seven consecutive days beginning from or including a specified day: Easter week; a week from Wednesday. 3. (Industrial Relations & HR Terms) the period of time within a week devoted to work4. a week devoted to the celebration of a causeadvchiefly Brit seven days before or after a specified day: I’ll visit you Wednesday week. [Old English wice, wicu, wucu; related to Old Norse vika, Gothic wik? order]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014week (wik) n. 1. a period of seven successive days, usu. understood as beginning with Sunday and ending with Saturday. 2. a period of seven successive days that begins with or includes an indicated day: the week of June 3. 3. (often cap.) a period of seven successive days devoted to celebrating or honoring something: National Book Week. 4. the working portion of the seven-day period; workweek: a 35-hour week. adv. 5. seven days before or after a specified day: I shall come Tuesday week. [before 900; Middle English weke, Old English wice, c. Old Saxon cr?cewika Holy Week, Old High German wehha, Old Norse vika week, Gothic wik? turn] Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.weekA week is a period of seven days. A week is usually regarded as beginning on a Monday, or sometimes on a Sunday.If something happens in the week or during the week, it happens on weekdays, which are the days when people usually go to work or school, rather than at the weekend.