What does 高校; 高等学校 mean?
高校; 高等学校 is a Japanese noun meaning “high school; senior high school” in English. It is written as 高校; 高等学校 in kanji, こうこう; こうとうがっこう in hiragana, and koukou; koutougakkou in romaji. This word is part of JLPT N4 vocabulary.
Example sentence
トムは高校の後輩です。
Tom and I went to the same high school. He was a year behind me.