1. To continue an action or process until it is finished or completed. This can be used in a variety of contexts, such as:
* "I know this project is difficult, but I'm determined to see it through."
* "She didn't give up, even when things got tough. She saw it through to the end."
2. To understand or comprehend something clearly. For example:
* "I don't see how this plan could possibly work."
* "She sees things through a different lens than most people."