1Last week — the week immediately preceding the current one; a common word in everyday conversation.
先週は毎日残業で疲れました。
I was tired from working overtime every day last week.
先週の土曜に友達と映画を見に行った。
I went to see a movie with friends last Saturday.
先週から風邪をひいています。
I've had a cold since last week.
先週の会議で新しい計画が発表された。
A new plan was announced at last week's meeting.