Katharine Houghton Hepburn vs Katharine Hepburn

Katharine Houghton Hepburn and Katharine Hepburn both are nouns.

Word	Noun	Adjective	Verb	Adverb
Katharine Houghton Hepburn	Yes	No	No	No
Katharine Hepburn	Yes	No	No	No

As nouns, Katharine Houghton Hepburn and Katharine Hepburn are synonyms defined as:

Katharine Houghton Hepburn and Katharine Hepburn: United States film actress who appeared in many films with Spencer Tracy (1907-2003)

Other synonyms of Katharine Houghton Hepburn include Audrey Hepburn, Hepburn.

Katharine Houghton Hepburn (noun)	Katharine Hepburn (noun)
United States film actress who appeared in many films with Spencer Tracy (1907-2003)	United States film actress who appeared in many films with Spencer Tracy (1907-2003)