Ahura Mazda vs Ormuzd

Ahura Mazda and Ormuzd both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ahura Mazda	Yes	No	No	No
Ormuzd	Yes	No	No	No

As nouns, Ahura Mazda and Ormuzd are synonyms defined as:

Ahura Mazda and Ormuzd: chief deity of Zoroastrianism; source of light and embodiment of good

Other synonyms of Ahura Mazda include Ormazd.

Ahura Mazda (noun)	Ormuzd (noun)
chief deity of Zoroastrianism; source of light and embodiment of good	chief deity of Zoroastrianism; source of light and embodiment of good