A newly arrived or newly joined person/state; often used as in 'newly joined ~' (e.g., new employee).
来週、新入社員の歓迎会を開きます。
We will hold a welcome party for new employees next week.
大学の新入の学生はオリエンテーションに参加した。
The newly enrolled students at the university attended the orientation.
新入の手続きを忘れずに済ませてください。
Please be sure to complete the procedures for new members.