John Mill vs John Stuart Mill

John Mill and John Stuart Mill both are nouns.

Word	Noun	Adjective	Verb	Adverb
John Mill	Yes	No	No	No
John Stuart Mill	Yes	No	No	No

As nouns, John Mill and John Stuart Mill are synonyms defined as:

John Mill and John Stuart Mill: English philosopher and economist remembered for his interpretations of empiricism and utilitarianism (1806-1873)

Other synonyms of John Mill include Mill.

John Mill (noun)	John Stuart Mill (noun)
English philosopher and economist remembered for his interpretations of empiricism and utilitarianism (1806-1873)	English philosopher and economist remembered for his interpretations of empiricism and utilitarianism (1806-1873)