/ Dictionary / Index U unit investment trust: Meaning and Definition of Find definitions for: u'nit invest'ment trust". Pronunciation: [key] See(defs. 1, 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unit factor unitive Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language