Dugald Stewart vs Stewart

Dugald Stewart and Stewart both are nouns.

Word	Noun	Adjective	Verb	Adverb
Dugald Stewart	Yes	No	No	No
Stewart	Yes	No	No	No

As nouns, Dugald Stewart and Stewart are synonyms defined as:

Dugald Stewart and Stewart: Scottish philosopher and follower of Thomas Reid (1753-1828)

Dugald Stewart (noun)	Stewart (noun)
Scottish philosopher and follower of Thomas Reid (1753-1828)	Scottish philosopher and follower of Thomas Reid (1753-1828)
	United States film actor who portrayed incorruptible but modest heros (1908-1997)