Jammu and Kashmir vs Cashmere

Jammu and Kashmir and Cashmere both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jammu and Kashmir	Yes	No	No	No
Cashmere	Yes	No	No	No

As nouns, Jammu and Kashmir and Cashmere are synonyms defined as:

Jammu and Kashmir and Cashmere: an area in southwestern Asia whose sovereignty is disputed between Pakistan and India

Other synonyms of Jammu and Kashmir include Kashmir.

Jammu and Kashmir (noun)	Cashmere (noun)
an area in southwestern Asia whose sovereignty is disputed between Pakistan and India	an area in southwestern Asia whose sovereignty is disputed between Pakistan and India