Five ways to say "I understand". Have you got any more?
1. To follow
For example: ‘Oh, yes, I follow you now’.
2. To get the point
For example: ‘I get your point, I think you’re right’.
3. To get the picture
For example: ‘I get the picture’.
4. To catch on
For example: ‘She tends to catch on fairly quickly’.
5. To catch one’s drift
For example: ‘Don’t worry, I catch your drift’.