Bunyan vs John Bunyan

Bunyan and John Bunyan both are nouns.

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

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

Bunyan and John Bunyan: English preacher and author of an allegorical novel, Pilgrim's Progress (1628-1688)

Bunyan (noun)	John Bunyan (noun)
a legendary giant lumberjack of the north woods of the United States and Canada	English preacher and author of an allegorical novel, Pilgrim's Progress (1628-1688)
English preacher and author of an allegorical novel, Pilgrim's Progress (1628-1688)