Switzerland vs Svizzera

Switzerland and Svizzera both are nouns.

Word	Noun	Adjective	Verb	Adverb
Switzerland	Yes	No	No	No
Svizzera	Yes	No	No	No

As nouns, Switzerland and Svizzera are synonyms defined as:

Switzerland and Svizzera: a landlocked federal republic in central Europe

Other synonyms of Switzerland include Schweiz, Suisse, Swiss Confederation.

Switzerland (noun)	Svizzera (noun)
a landlocked federal republic in central Europe	a landlocked federal republic in central Europe