Republic of Liberia vs Africa

Republic of Liberia and Africa both are nouns.

Word	Noun	Adjective	Verb	Adverb
Republic of Liberia	Yes	No	No	No
Africa	Yes	No	No	No

Republic of Liberia (noun)	Africa (noun)
a republic in West Africa; established in 1822 by Americans as a way to free negro slaves	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