undercarriage vs framework

undercarriage and framework both are nouns.

Word	Noun	Adjective	Verb	Adverb
undercarriage	Yes	No	No	No
framework	Yes	No	No	No

As nouns, framework is a hypernym of undercarriage; that is, framework is a word with a broader meaning than undercarriage:

Other hypernyms of undercarriage include frame, support.

undercarriage (noun)	framework (noun)
framework that serves as a support for the body of a vehicle	a structure supporting or containing something
	the underlying structure
	a hypothetical description of a complex entity or process