expression, godan verb (-su)
make up for lost time; catch up; make up for a delay
Used when recovering from a delay in progress, schedule, or work. Often implies a deliberate effort to get back on track.
遅れを取り戻すために、残業することにした。
I decided to work overtime to make up for the delay.
彼は休んだ
He is desperate to catch up on what he missed while he was absent.