How to say to congratulate in Korean
Korean: 축하하다[ chuk-ha-ha-da ]

Meaning
The word (축하하다) means to congratulate someone or celebrate a happy event. You use it for birthdays, weddings, passing a test, getting a new job, and other good news. In Korean, it is often used with the thing you are celebrating, like a birthday or graduation.
Example sentences
생일을 축하해요!
Happy birthday!
친구가 시험에서 성공했어요. 친구를 축하해요.
My friend passed the test. Let's congratulate him/her.
아빠가 회사에서 승진했어요. 아빠를 축하해요!
Dad got a promotion at work. Let's congratulate Dad!
누나가 대학을 졸업했어요. 누나를 축하해요.
My sister graduated from college. Let's congratulate her.





