This is the 7737th most frequent Japanese word.
取り返す
"取り返す" means "to recover, regain, or get back."
In this sentence, '取り返す' refers to the act of regaining or recovering something abstract, such as lost time.
彼は失った時間を取り返すために懸命に働いています。
He is working hard to make up for lost time.
Here, '取り返す' is used to indicate physically reclaiming an item that was taken away.
盗まれた財布を取り返すことができた。
I was able to reclaim the stolen wallet.
In this example, '取り返す' denotes the effort to resolve and amend a mistaken situation.