John Hancock vs Hancock

John Hancock and Hancock both are nouns.

Word	Noun	Adjective	Verb	Adverb
John Hancock	Yes	No	No	No
Hancock	Yes	No	No	No

As nouns, John Hancock and Hancock are synonyms defined as:

John Hancock and Hancock: American revolutionary patriot who was president of the Continental Congress; was the first signer of the Declaration of Independence (1737-1793)

John Hancock (noun)	Hancock (noun)
a person's own signature	American revolutionary patriot who was president of the Continental Congress; was the first signer of the Declaration of Independence (1737-1793)
American revolutionary patriot who was president of the Continental Congress; was the first signer of the Declaration of Independence (1737-1793)