IPA: /sʌbˈdiːn/
KK: /sʌbˈdin/
A person who assists a dean, often acting as a deputy or substitute in a school or college.
The subdean organized the academic schedule for the upcoming semester.
Subdean → It is formed from "sub-" (meaning under or below) and "dean" (from Old English "deofn", meaning chief or leader). The term refers to a position that is subordinate to a dean, indicating a role that is under the authority of the dean.
Think of someone who is a 'leader' ('dean') but in a position that is 'under' ('sub-') that leader — that's what a subdean is.