noun
A-grade; first-class
Used in grading systems (e.g., exams, licenses, products) to denote the top category. Often contrasted with 乙種 (second class) and 丙種 (third class).
See also: 甲乙丙 (こうおつへい)
彼は甲種危険物取扱者の資格を持っている。
He holds a Class A hazardous materials handler license.
この試験に合格すると甲種合格証
Passing this exam earns you a first-class certificate.