십시일반
十匙一飯 · ten spoonfuls make one bowl
Many small contributions add up to real help.
When to usePooling money for a coworker or a cause.
Related proverblift-paper-together
Examples
동료들이 십시일반 모아 선물을 샀어요.
Everyone chipped in a little to buy a gift.
Korean life dictionary
22 short guides to words and manners