1. maintain the same pace as sb/sth
keep up with sth, can't keep up
To keep up means to progress or move at the same speed or rate as someone or something else. "I couldn't keep up with the others during the run." "My neighbours all try to keep up with each other, if one family buys a new car, the other home will have a new one within a couple of weeks." It can also mean to maintain a commitment or do or pay something regularly. "I struggled for the past few weeks to keep up the payments on my car." "We keep up with our appointments each month." This phrasal verb can be used in professional and social contexts.