Tolkien vs J.R.R. Tolkien

Tolkien and J.R.R. Tolkien both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tolkien	Yes	No	No	No
J.R.R. Tolkien	Yes	No	No	No

As nouns, Tolkien and J.R.R. Tolkien are synonyms defined as:

Tolkien and J.R.R. Tolkien: British philologist and writer of fantasies (born in South Africa) (1892-1973)

Other synonyms of Tolkien include John Ronald Reuel Tolkien.

Tolkien (noun)	J.R.R. Tolkien (noun)
British philologist and writer of fantasies (born in South Africa) (1892-1973)	British philologist and writer of fantasies (born in South Africa) (1892-1973)