When to use to eat in Korean
Korean: 식사하다[ sik-sa-ha-da ]

When to use it
식사하다 means to eat a meal. It is a polite word, so people often use it in polite conversation or when talking about guests, customers, or older people. You can use it for breakfast, lunch, or dinner.
Example sentences
저는 집에서 가족과 식사해요.
I eat with my family at home.
우리는 학교 식당에서 식사했어요.
We ate in the school cafeteria.
공원에서 김밥으로 식사할 거예요.
We will eat kimbap in the park.
지금 식사하세요?
Are you eating now?
손님들이 식당에서 식사하고 있어요.
The guests are eating at the restaurant.
여행 중에 기차에서 식사했어요.
I ate on the train during the trip.