Kuwait vs State of Kuwait

Kuwait and State of Kuwait both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kuwait	Yes	No	No	No
State of Kuwait	Yes	No	No	No

As nouns, Kuwait and State of Kuwait are synonyms defined as:

Kuwait and State of Kuwait: an Arab kingdom in Asia on the northwestern coast of the Persian Gulf; a major source of petroleum

Other synonyms of Kuwait include Koweit.

Kuwait (noun)	State of Kuwait (noun)
an Arab kingdom in Asia on the northwestern coast of the Persian Gulf; a major source of petroleum	an Arab kingdom in Asia on the northwestern coast of the Persian Gulf; a major source of petroleum
a seaport on the Persian Gulf and capital of Kuwait