/ Dictionary / Index B bilby: Meaning and Definition of Find definitions for: bil•by Pronunciation: (bil'bē), [key] — pl. -bies. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: bilby (Thesaurus) bilbo Bildad Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language