Peter Alexander Ustinov vs Sir Peter Ustinov

Peter Alexander Ustinov and Sir Peter Ustinov both are nouns.

Word	Noun	Adjective	Verb	Adverb
Peter Alexander Ustinov	Yes	No	No	No
Sir Peter Ustinov	Yes	No	No	No

As nouns, Peter Alexander Ustinov and Sir Peter Ustinov are synonyms defined as:

Peter Alexander Ustinov and Sir Peter Ustinov: British actor and playwright (1921-2004)

Other synonyms of Peter Alexander Ustinov include Ustinov.

Peter Alexander Ustinov (noun)	Sir Peter Ustinov (noun)
British actor and playwright (1921-2004)	British actor and playwright (1921-2004)