/ Dictionary / Index S Spenta Mainyu: Meaning and Definition of Find definitions for: Spen'ta Main'yu Pronunciation: (mīn'y), [key] — Zoroastrianism. Zoroastrianism. the good and creative spirit that is the offspring of Ahura Mazda. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Spenta Amesha speos Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language