When to use high school student in Korean
Korean: 고등학생[ go-deung-hak-saeng ]

When to use it
A high school student is a student who goes to high school. In Korean, this word is 고등학생. You use it to talk about a teenager’s school life, age group, or daily activities. It is a common word in school and everyday conversation.
Example sentences
제 형은 고등학생이에요.
My older brother is a high school student.
고등학생들이 교실에서 공부해요.
The high school students study in the classroom.
저는 고등학생이라서 아침에 일찍 일어나요.
I am a high school student, so I wake up early in the morning.
공원에 고등학생 두 명이 있어요.
There are two high school students in the park.
가게에서 고등학생이 공책을 샀어요.
A high school student bought a notebook at the store.
기차에서 고등학생들이 학교 이야기를 해요.
The high school students talk about school on the train.