/ Dictionary / Index K keiretsu: Meaning and Definition of Find definitions for: kei•ret•su Pronunciation: (kā-ret's), [key] — pl. -su. (esp. in Japan) a loose coalition of business groups. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. keir keister Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language