- (At) that time or that moment.
- Then she was little. Now she is big.
- The then president did a lot of developmental activities.
- We will arrive before then.
- I'm going to see you next month; by then you will have finished your thesis.
- Your life since then must have seemed very ordinary.
- After something else.
- First, I cook the food; then I eat it, and then I wash the plates.
- In that case.
- If she is happy, then I'm happy too.