Kingdom of Spain vs Espana

Kingdom of Spain and Espana both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kingdom of Spain	Yes	No	No	No
Espana	Yes	No	No	No

As nouns, Kingdom of Spain and Espana are synonyms defined as:

Kingdom of Spain and Espana: a parliamentary monarchy in southwestern Europe on the Iberian Peninsula; a former colonial power

Other synonyms of Kingdom of Spain include Spain.

Kingdom of Spain (noun)	Espana (noun)
a parliamentary monarchy in southwestern Europe on the Iberian Peninsula; a former colonial power	a parliamentary monarchy in southwestern Europe on the Iberian Peninsula; a former colonial power