/ Dictionary / Index B baseborn: Meaning and Definition of Find definitions for: base•born Pronunciation: (bās'bôrn'), [key] — adj. of humble parentage. born out of wedlock; illegitimate. having a base character or nature; mean. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: baseborn (Thesaurus) baseboard base box Related Content Daily Word Quiz: prevalent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language