살 돈

money to buy

→ 사다
phrase Rare #24,348
money to buy 살 is the form of 사다 (“to buy”) used before a noun, so 살 돈 means money for buying something.
KO: 새 자전거 살 돈을 모으고 있어요.
EN: I'm saving up money to buy a new bicycle.

새 거 살 돈 없어?

Don't you have enough money to buy a new one?

— 폭풍의 시간 (2018)