to do something that you did not have time to do earlier
After the exams, I need to catch up on some sleep.
To spend extra time doing something because you haven't done it earlier
ملاقات کردن let's catch up today بیا امروز همدیگر را ببینیم
جبران کردن کار عقب افتاده
به چیزی رسیدگی کردن
جبران کردن
در جریان قرار گرفتن
to do a task that one has neglected