When to use alone in Korean
Korean: 혼자[ hon-ja ]

When to use it
혼자 means “alone” or “by yourself.” You use it when one person does something without other people. It can be used with many everyday actions, like eating, going somewhere, studying, or staying at home.
Example sentences
저는 집에서 혼자 있어요.
I am alone at home.
지수는 학교에 혼자 갔어요.
Jisu went to school alone.
그는 공원에서 혼자 뛰어요.
He runs alone in the park.
오늘은 혼자 점심을 먹어요.
I am eating lunch alone today.
엄마는 혼자 가게에 가요.
Mom goes to the store alone.
저는 제주도에 혼자 여행 갔어요.
I traveled to Jeju alone.