cash in

verb

I need to cash in this check.

意味（1）

To exchange for cash.

The gamblers cashed in their remaining chips at the end of the night.

意味（2）

(figuratively) To profit from something; to take advantage of an opportunity in order to profit, especially financially.

Lots of people tried to cash in on that market, but few succeeded.

意味（3）

(slang) To die.

He turned to me, and "Cap," says he, "I'll cash in this trip, I guess; / And if I do, I'm asking that you won't refuse my last request."[…]