- For other meanings, see Billabong
Billabong is an Australian English word meaning a small lake, specifically an oxbow lake. Billabongs are usually formed when the path of a creek or river changes, leaving a dead end. Some people say there is a Scottish Gaelic origin, but the word is most likely from the Wiradjuri term bilabaŋ.
- Clarke, R. "Australianisms in 'Waltzing Matilda'", Xamax Consultancy Pty Ltd, 10 December 2003. Last accessed 5 November 2009.
- Skilton, St J. "The Survey of Scottish Gaelic in Australia and New Zealand", p. 300, quoting a respondent to his survey: "'Bill' = 'bile' = 'lip or mouth' and 'abong' is from 'abhainn' = 'river' with a parasitic 'G' added. A billabong probably has a mouth shape of sorts being at a bend in a river." University of Fribourg, Switzerland, June 2004. Last accessed 15 March 2008.
- Ludowyk, F. "Of Billy, Bong, Bung, & 'Billybong'", Australian National University, no date. Last accessed 15 March 2008.
- "Merriam-Webster Dictionary Online". Last accessed 15 March 2008.