To meet or talk with someone to share news after not seeing them for a while; also to get up to date on something missed.
“It's been so long — let's catch up over coffee this weekend.”
“I'd love to catch up and hear how your new job is going.”
This phrasal verb is common in informal CELPIP Writing Task 1 emails to friends or relatives, such as suggesting a coffee meeting to 'catch up' on recent news. Keep it for personal, informal prompts rather than formal business emails.
Synonyms: get together, reconnect, touch base