Gansu province vs Kansu

Gansu province and Kansu both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gansu province	Yes	No	No	No
Kansu	Yes	No	No	No

As nouns, Gansu province and Kansu are synonyms defined as:

Gansu province and Kansu: a province in north-central China; formerly part of the Silk Road to Turkistan and India and Persia

Other synonyms of Gansu province include Gansu.

Gansu province (noun)	Kansu (noun)
a province in north-central China; formerly part of the Silk Road to Turkistan and India and Persia	a province in north-central China; formerly part of the Silk Road to Turkistan and India and Persia