/ Dictionary / Index B borderer: Meaning and Definition of Find definitions for: bor•der•er Pronunciation: (bôr'dur-ur), [key] — n. a person who dwells on or near the border of a country, region, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: borderer (Thesaurus) bordereau borderland 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