When you wind up an activity, ___________

• When you wind up an activity, you finish it or stop doing it.

• Wind (something) up
English Meaning: To end, or to make an activity end:
Bangla Meaning: শেষ হওয়া বা শেষ করা

• Example:
- It’s time for you to wind up your speech.
- We wound up the evening by singing songs from the old Bangla movies.
- I think it's about time we wound this meeting up.
- We need to wind up now, we only have five minutes left.

Source:
1. Accessible Dictionary by Bangla Academy.
2. Cambridge Dictionary.