Africa vs Sahara Desert

Africa and Sahara Desert both are nouns.

Word	Noun	Adjective	Verb	Adverb
Africa	Yes	No	No	No
Sahara Desert	Yes	No	No	No

Africa (noun)	Sahara Desert (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	the world's largest desert (3,500,000 square miles) in northern Africa