Difference between to promise and guarantee in Korean
약속하다·보장하다

약속하다to promise
약속하다 means to promise. You use it when you tell someone that you will do something or that you will not do something. It is often used with family, friends, teachers, or other people when you want to show you will keep your word.

보장하다guarantee
보장하다 means to promise that something will happen, work well, or be protected. It is often used for safety, quality, refunds, seats, or results. People, stores, schools, and companies can all guarantee something.
The difference
to promise (약속하다) and guarantee (보장하다) are nearby Korean vocabulary items learners often meet together. Use “to promise” when 약속하다 means to promise. You use it when you tell someone that you will do something or that you will not do something. It is often used wi… Use “guarantee” when 보장하다 means to promise that something will happen, work well, or be protected. It is often used for safety, quality, refunds, seats, or re…