Gloria Swanson vs Swanson

Gloria Swanson and Swanson both are nouns.

Word	Noun	Adjective	Verb	Adverb
Gloria Swanson	Yes	No	No	No
Swanson	Yes	No	No	No

As nouns, Gloria Swanson and Swanson are synonyms defined as:

Gloria Swanson and Swanson: United States actress in many silent films (1899-1983)

Other synonyms of Gloria Swanson include Gloria May Josephine Svensson.

Gloria Swanson (noun)	Swanson (noun)
United States actress in many silent films (1899-1983)	United States actress in many silent films (1899-1983)