Kuwait vs Kuwait City

Kuwait and Kuwait City both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kuwait	Yes	No	No	No
Kuwait City	Yes	No	No	No

As nouns, Kuwait and Kuwait City are synonyms defined as:

Kuwait and Kuwait City: a seaport on the Persian Gulf and capital of Kuwait

Other synonyms of Kuwait include capital of Kuwait, Koweit.

Kuwait (noun)	Kuwait City (noun)
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
a seaport on the Persian Gulf and capital of Kuwait