Ahura Mazda vs Ormazd

Ahura Mazda and Ormazd both are nouns.

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

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

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

Other synonyms of Ahura Mazda include Ormuzd.

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