Amerigo Vespucci vs Vespucci

Amerigo Vespucci and Vespucci both are nouns.

Word	Noun	Adjective	Verb	Adverb
Amerigo Vespucci	Yes	No	No	No
Vespucci	Yes	No	No	No

As nouns, Amerigo Vespucci and Vespucci are synonyms defined as:

Amerigo Vespucci and Vespucci: Florentine navigator who explored the coast of South America; America was named in his honor (1454-1512)

Other synonyms of Amerigo Vespucci include Americus Vespucius.

Amerigo Vespucci (noun)	Vespucci (noun)
Florentine navigator who explored the coast of South America; America was named in his honor (1454-1512)	Florentine navigator who explored the coast of South America; America was named in his honor (1454-1512)