“이해했어요” (i-hae-haess-eo-yo) means “I understood” or “I got it.” It is the past tense form of 이해하다 (i-hae-ha-da), which means “to understand.” Im questions its “do you understand?”, “did you get it?“
Example Sentences:
설명을 듣고 이해했어요. (seol-myeong-eul deut-go i-hae-haess-eo-yo.) – I listened to the explanation and understood.
이제 문제를 이해했어요. (i-je mun-je-reul i-hae-haess-eo-yo.) – Now I understand the problem.
그 뜻을 이해했어요. (geu tteut-eul i-hae-haess-eo-yo.) – I understood the meaning.
처음에는 어려웠지만 지금은 이해했어요. (cheo-eum-e-neun eo-ryeo-woss-ji-man ji-geum-eun i-hae-haess-eo-yo.) – At first, it was difficult, but now I understand.
이해했어요, 걱정하지 마세요. (i-hae-haess-eo-yo, geok-jeong-ha-ji ma-se-yo.) – I got it, don’t worry.
The polite conjugation is 이해했어요, and the honorific form would be 이해하셨나요? (i-hae-ha-syeoss-na-yo?) when asking if someone has understood.