/ Dictionary / Index S Seri: Meaning and Definition of Find definitions for: Se•ri Pronunciation: (ser'ē, sâr'ē), [key] — pl. -ris, -ri a member of an American Indian people of western Sonora state, Mexico, on the Gulf of California. the Hokan language of the Seri. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Sergiyev Posad serial Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language