If you quit high school before graduating, the noun form is:
High school drop out.
He was a high school drop out.
In the verb sense you can say:
He dropped out of high school.
I hope that helps!
[高校](https://eikaiwa.dmm.com/uknow/questions/42187/)を[卒業](https://eikaiwa.dmm.com/uknow/questions/36106/)を待たずに辞めてしまうことを、名詞でいうと
high school drop out
と言います。
He was a high school drop out.
（彼は高校を中退した人だ。）
動詞だったら、こう言います。
He dropped out of high school.
（彼は高校を中退した。）
参考になればうれしいです！
A dropout is someone who has left school or college before they have finished their studies.
He's a college dropout and rides a motorcycle.
Before any of this happened I was a high school dropout who worked in a warehouse.
I'm a beauty school dropout.
「A dropout」とは、勉強を終える前に、学校や大学を辞めることです。
例文：
He's a college dropout and rides a motorcycle.
「彼は、大学を中退してバイクに乗っています。」
Before any of this happened I was a high school dropout who worked in a warehouse.
「これが起きる前に、高校を中退して、倉庫で働いていました。」
I'm a beauty school dropout.
「美容師学校を中退しました。」
Dropout is a noun.It means a person who has abandoned/left a course of study.
For example: He dropped out of high school.
He was a high school drop out.
「Dropout」は名詞です。
勉強を放棄した人を意味します。
例文
He dropped out of high school.
高校を中退しました。
He was a high school drop out.
高校を中退しました。
Someone who quits school before graduating is called a high school drop out.
Example:-
I'm dropping out of high school next month, so that I can open my own business.
卒業する前に学校をやめてしまった人を高校中退と呼びます。
例文
I'm dropping out of high school next month, so that I can open my own business.
来月高校をやめて、自分のジビネスを始めます。
"quit"
"back out"
"leave"
drop out means leaving school . Withdrawing from an educational institute without completing the course. A person who withdraws from an established society to persue another lifestyle,
"quit"（やめる）
"back out"（～を取り消す、手を引く）
"leave"（～から去る・やめる）
"drop out"（学校をやめる）
"withdrawing from an educationnal institute withiout completing the course"
（単位をとる前に学校をやめること）
"A person who withdraws from an established society to pursue another lifstyle"（制定された社会から一歩離れ、違う人生を追い求める人）
Generally a person who leaves without completing their studies is known as a 'dropout,' and the verb used in that case is 'to drop out.'
You may also describe it as 'giving up school' or leaving school early.'
'Early' would be before reaching the end of one's compulsory education.
"Did you hear about James dropping out of school?"
"Really? He did mention he was thinking about giving up school, but I didn't think he actually would."
勉強を途中でやめてしまった人のことを'dropout,'といいます。この動詞としても 'to drop out.'は使われます。 'giving up school' や leaving school early.'といわれることもあります。
Earlyはこの場合、義務教育が終わる前のことをさすこともあります。
例
"Did you hear about James dropping out of school?"
ジェームズが学校辞めるってきいた？
"Really? He did mention he was thinking about giving up school, but I didn't think he actually would."
本当に？学校辞めたいって話はしてたけど、本当にするとは思ってもみなかった。
アメリカ合衆国 
イギリス 
南アフリカ 
カナダ 
