High Class
High Grade
noun, な adjective, の adjective
When you are higher than equal, you are above the very top, you are above everyone. You are high class.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
あなたの国の高等教育について教えてください。
Please tell me about higher education in your country.
うちの息子はまだ小学生ですが、すでに高等レベルの数学を勉強しています。
My son is still in elementary school, but he is already studying higher level math.
このロボットのプログラミングには、高等な技術が必要です。
Programming this robot requires advanced skills.