Loire River vs Loire

Loire River and Loire both are nouns.

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

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

Loire River and Loire: the longest French river; rises in the Massif Central and flows north and west to the Atlantic Ocean

Loire River (noun)	Loire (noun)
the longest French river; rises in the Massif Central and flows north and west to the Atlantic Ocean	the longest French river; rises in the Massif Central and flows north and west to the Atlantic Ocean