IPA: //ˈɛərfreɪm//
KK: /ˈɛrˌfreɪm/
The main structure of an aircraft, which includes the body and wings, but does not include the engines or other systems.
The engineers designed a new airframe to improve the aircraft's aerodynamics.
Airframe is formed from "air" (from Old English "aer", meaning the atmosphere or sky) and "frame" (from Old English "framian", meaning to construct or build). The word "airframe" refers to the structure or framework of an aircraft that supports its components and shape in the air.
Think of the 'air' as the atmosphere where the aircraft operates and 'frame' as the structure that holds it together. This helps you remember that an airframe is the structure of an aircraft designed to function in the air.