Muscat vs Masqat

Muscat and Masqat both are nouns.

Word	Noun	Adjective	Verb	Adverb
Muscat	Yes	No	No	No
Masqat	Yes	No	No	No

As nouns, Muscat and Masqat are synonyms defined as:

Muscat and Masqat: a port on the Gulf of Oman and capital of the sultanate of Oman

Other synonyms of Muscat include capital of Oman.

Muscat (noun)	Masqat (noun)
a port on the Gulf of Oman and capital of the sultanate of Oman	a port on the Gulf of Oman and capital of the sultanate of Oman