Nicklaus vs Jack Nicklaus

Nicklaus and Jack Nicklaus both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nicklaus	Yes	No	No	No
Jack Nicklaus	Yes	No	No	No

As nouns, Nicklaus and Jack Nicklaus are synonyms defined as:

Nicklaus and Jack Nicklaus: United States golfer considered by many to be the greatest golfer of all time (born in 1940)

Other synonyms of Nicklaus include Jack William Nicklaus.

Nicklaus (noun)	Jack Nicklaus (noun)
United States golfer considered by many to be the greatest golfer of all time (born in 1940)	United States golfer considered by many to be the greatest golfer of all time (born in 1940)