Sitsang vs Xizang

Sitsang and Xizang both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sitsang	Yes	No	No	No
Xizang	Yes	No	No	No

As nouns, Sitsang and Xizang are synonyms defined as:

Sitsang and Xizang: an autonomous region of the Peoples Republic of China; located in the Himalayas

Other synonyms of Sitsang include Thibet, Tibet, Tibet Autonomous Region.

Sitsang (noun)	Xizang (noun)
an autonomous region of the Peoples Republic of China; located in the Himalayas	an autonomous region of the Peoples Republic of China; located in the Himalayas