Namib Desert vs South West Africa

Namib Desert and South West Africa both are nouns.

Word	Noun	Adjective	Verb	Adverb
Namib Desert	Yes	No	No	No
South West Africa	Yes	No	No	No

Namib Desert (noun)	South West Africa (noun)
a desert in Namibia extending along the coast between the high plateau and the Atlantic Ocean	a republic in southwestern Africa on the south Atlantic coast (formerly called South West Africa); achieved independence from South Africa in 1990; the greater part of Namibia forms part of the high Namibian plateau of South Africa