IPA: /ˈsʌbˌfreɪm/
KK: /sʌbfreɪm/
A part of a larger structure that supports or holds specific components, often found in vehicles or data systems.
The subframe of the car was designed to support the engine and suspension system.
Subframe → It is formed from "sub-" (meaning under or below) and "frame" (from Old English "framian", meaning to construct or build). The word "subframe" refers to a structure that supports or is situated beneath a main frame.
Think of something that is built "under" ('sub-') a main structure ('frame') — that's what a subframe is.