/ Dictionary / Index U universal class: Meaning and Definition of Find definitions for: u'niver'sal class' Pronunciation: [key] — Logic. Logic. (in the theory of classes) the class that includes all other classes and is composed of all individuals composing these classes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Universal City universal coupling Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language