by the end of this week; within the week
last week; the week before
weekly report; weekly bulletin
beginning of next week (usu. Monday); early next week
the following week; the next week
last week; the week before
every other week; every two weeks
the week after the following week; two weeks later; two weeks after that
weekly ideas; weekly thoughts; ideas brought forth at the conclusion of a week
the Feast of Weeks; Pentecost