noun
beginning of next week; early next week
Refers to the start of the following week, typically Monday or the first business day. Common in scheduling and news contexts.
週明けに会議を設定しましょう。
Let's schedule the meeting for early next week.
週明けの月曜日はいつも忙しい。
Mondays at the start of the week are always busy.
Compound of 週 (week) and 明け (opening/beginning, from 明ける 'to dawn/begin').