Charles Robert Darwin vs Charles Darwin

Charles Robert Darwin and Charles Darwin both are nouns.

Word	Noun	Adjective	Verb	Adverb
Charles Robert Darwin	Yes	No	No	No
Charles Darwin	Yes	No	No	No

As nouns, Charles Robert Darwin and Charles Darwin are synonyms defined as:

Charles Robert Darwin and Charles Darwin: English natural scientist who formulated a theory of evolution by natural selection (1809-1882)

Other synonyms of Charles Robert Darwin include Darwin.

Charles Robert Darwin (noun)	Charles Darwin (noun)
English natural scientist who formulated a theory of evolution by natural selection (1809-1882)	English natural scientist who formulated a theory of evolution by natural selection (1809-1882)