What does 高校生 mean?
高校生 is a Japanese noun meaning “high school student” in English. It is written as 高校生 in kanji, こうこうせい in hiragana, and koukousei in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
彼らの大部分が高校生だった。
They were for the most part high school students.