Africa vs United Republic of Tanzania

Africa and United Republic of Tanzania both are nouns.

Word	Noun	Adjective	Verb	Adverb
Africa	Yes	No	No	No
United Republic of Tanzania	Yes	No	No	No

Africa (noun)	United Republic of Tanzania (noun)
the second largest continent; located to the south of Europe and bordered to the west by the South Atlantic and to the east by the Indian Ocean	a republic in eastern Africa