IPA: //sʌbˈeɪdʒənsi//
KK: /sʌbˈeɪdʒənsi/
A smaller organization that is part of a larger agency and carries out specific tasks or functions.
The subagency was responsible for managing local environmental projects.
Subagency → It is formed from "sub-" (meaning under or below) and "agency" (from Latin "agens", meaning doing or acting). The word "subagency" refers to an agency that operates under the authority of a larger agency.
Think of something that acts "under" ('sub-') the main authority of an "agency" — that's what subagency means.