/ Dictionary / Index Y yi: Meaning and Definition of Find definitions for: yi Pronunciation: (yē), [key] — n. (in Chinese ethical philosophy) faithful performance of one's specified duties to society. Yi Pronunciation: (yē), [key] — pl. Yis, Yi. Lolo (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: yi (Thesaurus) YHVH Yibin Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language