/ Dictionary / Index B border tax: Meaning and Definition of Find definitions for: bor'der tax" Pronunciation: [key] a tax system for imports and exports, esp. one that compensates for internal taxes in Common Market countries by levying fees or paying rebates. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Border States Border terrier 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