What is another word for underframe?
Pronunciation: [ˌʌndəfɹˈe͡ɪm] (IPA) 
Underframe is a term used to describe the base framework of a vehicle or structure. However, there are several synonyms for this word, each with their own unique connotations and applications. The term chassis is often used interchangeably with underframe, particularly in reference to cars and trucks. Another synonym is frame, which is a broad term used to describe any supporting structure. The term subframe is also applicable in some contexts, particularly for structures that have multiple layers of support. Other synonyms for underframe include skeleton, backbone, and structure. These words are often used in technical or mechanical contexts to describe the internal components of a device or machine.
