Katar vs Qatar

Katar and Qatar both are nouns.

Word	Noun	Adjective	Verb	Adverb
Katar	Yes	No	No	No
Qatar	Yes	No	No	No

As nouns, Katar and Qatar are synonyms defined as:

Katar and Qatar: an Arab country on the peninsula of Qatar; achieved independence from the United Kingdom in 1971; the economy is dominated by oil

Other synonyms of Katar include State of Katar, State of Qatar.

As nouns, Katar and Qatar are synonyms defined as:

Katar and Qatar: a peninsula extending northward from the Arabian mainland into the Persian Gulf

Other synonyms of Katar include Katar Peninsula, Qatar Peninsula.

Katar (noun)	Qatar (noun)
an Arab country on the peninsula of Qatar; achieved independence from the United Kingdom in 1971; the economy is dominated by oil	an Arab country on the peninsula of Qatar; achieved independence from the United Kingdom in 1971; the economy is dominated by oil
a peninsula extending northward from the Arabian mainland into the Persian Gulf	a peninsula extending northward from the Arabian mainland into the Persian Gulf