/ Dictionary / Index B billable: Meaning and Definition of Find definitions for: bill•a•ble Pronunciation: (bil'u-bul), [key] — adj. that may or should be billed: Attorneys put in hundreds of billable hours on the case. —n. an active customer account. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bill billabong Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language