<p><strong>Noun</strong></p><ul><li>A period of seven successive days: That wallpapering I thought I could do in two days ended up taking me a whole week.</li><li>The period of seven days from Sunday through Saturday, generally understood as the common representation of a week on a calendar: The 1st of next month is a Tuesday, so the first full week will begin on the 6th.</li><li>A period of seven successive days that begins with or includes an indicated day: the week of June 3; Christmas week.</li><li>(Often initial capital letter) A period of seven successive days devoted to a particular celebration, honor, cause, etc.: National Book Week.</li><li>The working days or working portion of the seven-day period; workweek: Not all American workers put in the same number of hours on the job, but a 40-hour week is the norm.</li></ul><p><strong>Adverb</strong></p><ul><li>British. Seven days before or after a specified day: I shall come Tuesday week. He left yesterday week.</li></ul>