Santa Cruz vs Santa Cruz de la Sierra

Santa Cruz and Santa Cruz de la Sierra both are nouns.

Word	Noun	Adjective	Verb	Adverb
Santa Cruz	Yes	No	No	No
Santa Cruz de la Sierra	Yes	No	No	No

As nouns, Santa Cruz and Santa Cruz de la Sierra are synonyms defined as:

Santa Cruz (noun)	Santa Cruz de la Sierra (noun)
a town in western California on Monterey Bay; a tourist center	a city in central Bolivia
a city in central Bolivia