Kunlun Mountains vs Kunlun

Kunlun Mountains and Kunlun both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kunlun Mountains	Yes	No	No	No
Kunlun	Yes	No	No	No

As nouns, Kunlun Mountains and Kunlun are synonyms defined as:

Kunlun Mountains and Kunlun: a mountain range in western China that extends eastward from the Indian border for 1000 miles

Other synonyms of Kunlun Mountains include Kuenlun, Kuenlun Mountains, Kunlan Shan.

Kunlun Mountains (noun)	Kunlun (noun)
a mountain range in western China that extends eastward from the Indian border for 1000 miles	a mountain range in western China that extends eastward from the Indian border for 1000 miles