Noam Chomsky vs A. Noam Chomsky

Noam Chomsky and A. Noam Chomsky both are nouns.

Word	Noun	Adjective	Verb	Adverb
Noam Chomsky	Yes	No	No	No
A. Noam Chomsky	Yes	No	No	No

As nouns, Noam Chomsky and A. Noam Chomsky are synonyms defined as:

Noam Chomsky and A. Noam Chomsky: United States linguist whose theory of generative grammar redefined the field of linguistics (born 1928)

Other synonyms of Noam Chomsky include Chomsky.

Noam Chomsky (noun)	A. Noam Chomsky (noun)
United States linguist whose theory of generative grammar redefined the field of linguistics (born 1928)	United States linguist whose theory of generative grammar redefined the field of linguistics (born 1928)