Richardson vs Ralph Richardson

Richardson and Ralph Richardson both are nouns.

Word	Noun	Adjective	Verb	Adverb
Richardson	Yes	No	No	No
Ralph Richardson	Yes	No	No	No

As nouns, Richardson and Ralph Richardson are synonyms defined as:

Richardson and Ralph Richardson: British stage and screen actor noted for playing classic roles (1902-1983)

Other synonyms of Richardson include Sir Ralph David Richardson.

Richardson (noun)	Ralph Richardson (noun)
British stage and screen actor noted for playing classic roles (1902-1983)	British stage and screen actor noted for playing classic roles (1902-1983)
United States architect (1838-1886)