Antarctic continent vs Antarctica

Antarctic continent and Antarctica both are nouns.

Word	Noun	Adjective	Verb	Adverb
Antarctic continent	Yes	No	No	No
Antarctica	Yes	No	No	No

As nouns, Antarctic continent and Antarctica are synonyms defined as:

Antarctic continent and Antarctica: an extremely cold continent at the south pole almost entirely below the Antarctic Circle; covered by an ice cap up to 13,000 feet deep

Antarctic continent (noun)	Antarctica (noun)
an extremely cold continent at the south pole almost entirely below the Antarctic Circle; covered by an ice cap up to 13,000 feet deep	an extremely cold continent at the south pole almost entirely below the Antarctic Circle; covered by an ice cap up to 13,000 feet deep