週

週

Week.

In this sentence, '週' (week) is used to specify recurrence in weekly terms, '毎週' translates to 'every week'.

私は毎週月曜日に英語の授業を受けます。

I have English classes every Monday.

In this case, '週' is in '来週', meaning 'next week', referring to the week following the current one.

来週、学校で文化祭があります。

Next week, there is a cultural festival at school.

Here, '週' is used in '先週', meaning 'last week', to refer to the week preceding the current one.

先週の土曜日、友達と映画を見に行きました。

Last Saturday, I went to see a movie with my friends.