Nefud vs An Nefud

Nefud and An Nefud both are nouns.

Word	Noun	Adjective	Verb	Adverb
Nefud	Yes	No	No	No
An Nefud	Yes	No	No	No

As nouns, Nefud and An Nefud are synonyms defined as:

Nefud and An Nefud: a desert in northern Saudi Arabia that is noted for its red sand and violent winds

Other synonyms of Nefud include An Nafud, Nafud.

Nefud (noun)	An Nefud (noun)
a desert in northern Saudi Arabia that is noted for its red sand and violent winds	a desert in northern Saudi Arabia that is noted for its red sand and violent winds