David Bruce vs Sir David Bruce

David Bruce and Sir David Bruce both are nouns.

Word	Noun	Adjective	Verb	Adverb
David Bruce	Yes	No	No	No
Sir David Bruce	Yes	No	No	No

As nouns, David Bruce and Sir David Bruce are synonyms defined as:

David Bruce and Sir David Bruce: Australian physician and bacteriologist who described the bacterium that causes undulant fever or brucellosis (1855-1931)

Other synonyms of David Bruce include Bruce.

David Bruce (noun)	Sir David Bruce (noun)
Australian physician and bacteriologist who described the bacterium that causes undulant fever or brucellosis (1855-1931)	Australian physician and bacteriologist who described the bacterium that causes undulant fever or brucellosis (1855-1931)