casing vs framework

casing and framework both are nouns.

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

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

Other hypernyms of casing include frame.

casing (noun)	framework (noun)
the enclosing frame around a door or window opening	a structure supporting or containing something
the housing or outer covering of something	the underlying structure
the outermost covering of a pneumatic tire	a hypothetical description of a complex entity or process