攒

save up, accumulate

verb Rare #28,544
save up, accumulate Usually used for gradually saving money or collecting something over time.
CH: 我想攒钱买一辆自行车。
EN: I want to save up to buy a bicycle.

钱还没攒够

I haven't saved up enough money yet.

— Deep Sea (2023)

我工作是为了攒大学学费。

I work to save up for my college tuition.