Breadcrumb Home > Dictionary > Index I impi: Meaning and Definition of Find definitions for: im•pi Pronunciation: (im'pē), [key] — pl. -pies, -pis. (in South African history) a unit of Zulu warriors; regiment. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Imphal impiety ✖ Related Content Daily Word Quiz: temporize Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language