/ Dictionary / Index U unit rule: Meaning and Definition of Find definitions for: u'nit rule' Pronunciation: [key] (in national conventions of the Democratic party) a rule whereby a state's delegation votes as a unit, not recognizing minority votes within the delegation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. unit record unit's place Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language