Araguaya vs Araguaya River

Araguaya and Araguaya River both are nouns.

Word	Noun	Adjective	Verb	Adverb
Araguaya	Yes	No	No	No
Araguaya River	Yes	No	No	No

As nouns, Araguaya and Araguaya River are synonyms defined as:

Araguaya and Araguaya River: a river in central Brazil that flows generally northward (with many falls) to join the Tocantins River

Other synonyms of Araguaya include Araguaia, Araguaia River.

Araguaya (noun)	Araguaya River (noun)
a river in central Brazil that flows generally northward (with many falls) to join the Tocantins River	a river in central Brazil that flows generally northward (with many falls) to join the Tocantins River