/ Dictionary / Index K Kleenex: Meaning and Definition of Find definitions for: Kleen•ex Pronunciation: (klē'neks), [key] — Trademark. Trademark. a brand name for a soft, disposable paper tissue, used esp. as a handkerchief. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: kleenex (Thesaurus) Klee Kleiber Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language