Republic of Austria vs EC

Republic of Austria and EC both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of Austria	Yes	No	No	No
EC	Yes	No	No	No

Republic of Austria (noun)	EC (noun)
a mountainous republic in central Europe; under the Habsburgs (1278-1918) Austria maintained control of the Holy Roman Empire and was a leader in European politics until the 19th century	an international organization of European countries formed after World War II to reduce trade barriers and increase cooperation among its members