Sir Peter Ustinov vs Peter Alexander Ustinov

Sir Peter Ustinov and Peter Alexander Ustinov both are nouns.

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

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

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

Other synonyms of Sir Peter Ustinov include Ustinov.

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