/ Dictionary / Index B bound variable: Meaning and Definition of Find definitions for: bound' var'iable Pronunciation: [key] — Logic. Logic. (in the functional calculus) a variable occurring in a quantifier and in a sentential function within the scope of the quantifier. Cf. free variable. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. boundless bounteous Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language