PR vs Porto Rico

PR and Porto Rico both are nouns.

Word	Noun	Adjective	Verb	Adverb
PR	Yes	No	No	No
Porto Rico	Yes	No	No	No

As nouns, PR and Porto Rico are synonyms defined as:

PR and Porto Rico: a self-governing commonwealth associated with the United States occupying the island of Puerto Rico

Other synonyms of PR include Commonwealth of Puerto Rico, Puerto Rico.

PR (noun)	Porto Rico (noun)
a promotion intended to create goodwill for a person or institution	a self-governing commonwealth associated with the United States occupying the island of Puerto Rico
a self-governing commonwealth associated with the United States occupying the island of Puerto Rico	the smallest and easternmost of the Greater Antilles in the Caribbean