/ Dictionary / Index B billabong: Meaning and Definition of Find definitions for: bil•la•bong Pronunciation: (bil'u-bông", -bong"), [key] — n. Australian. a branch of a river flowing away from the main stream but leading to no other body of water; a blind or dead-end channel. a creek bed holding water only in the rainy season; a dried-up watercourse. a stagnant backwater or slough formed by receding floodwater. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: billabong (Thesaurus) billable billbergia Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language