Regular, formal, or legitimate; conforming to established rules or official status (e.g., regular employment, official version).
彼は正規の社員として採用された。
He was hired as a full-time (regular) employee.
このソフトは正規版を購入した方が安心だ。
It's safer to buy the legitimate version of this software.
正規の手続きを踏んで申請してください。
Please follow the official procedures when applying.