Antarctica vs Antarctic continent

Antarctica and Antarctic continent both are nouns.

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

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

Antarctica and Antarctic continent: 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

Antarctica (noun)	Antarctic continent (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