Nelson vs Lord Nelson

Nelson and Lord Nelson both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nelson	Yes	No	No	No
Lord Nelson	Yes	No	No	No

As nouns, Nelson and Lord Nelson are synonyms defined as:

Nelson and Lord Nelson: English admiral who defeated the French fleets of Napoleon but was mortally wounded at Trafalgar (1758-1805)

Other synonyms of Nelson include Admiral Nelson, Horatio Nelson, Viscount Nelson.

Nelson (noun)	Lord Nelson (noun)
English admiral who defeated the French fleets of Napoleon but was mortally wounded at Trafalgar (1758-1805)	English admiral who defeated the French fleets of Napoleon but was mortally wounded at Trafalgar (1758-1805)