To catch up means to learn the news of someone or something.
To bring one’s efforts with something up-to-date; to do the work that one should have done.
To bring someone up to date; brief someone.
1. Heather, do you have time to catch up over coffee today?
2. After the long weekend, I really need time to catch up on my work.
3. It will be great to see everyone and catch up at Christmas.
4. I read the newspaper every Thursday to catch up on news.
chat, communicate, convey, express, get ahead, get on with, progress, say, speak, talk, tell