We have agents, student and parent who can submit an application for a student. Wondering whether I could call them applicant?
Answer
I don’t know of a word specific to student applications. But, a person that is officially taking action on behalf of another could be referred to as a proxy:
1.1 A person authorized to act on behalf of another.
Oxford Living Dictionaries
Attribution
Source : Link , Question Author : K. Reynolds , Answer Author : jxh