billabong /bilˈə-bong/ (Aust)

1. A cut-off loop of a river, replenished only by floods
2. An offshoot from a river (strictly one that does not rejoin it)

• thumpers
• thumping
• thumpingly
• thumps
• thunbergia
• thunbergias
• thunder
• thunder-and-lightning
• thunder-bearer
• thunder-bearers
• thunderbird
• thunderbirds
• thunderbolt
• thunderbolts
• thunderbox
• thunderboxes
• thunderclap
• thunderclaps
• thundercloud
• thunderclouds
• thunder-dart
• thunder-darter
• thunder-darters
• thunder-darts
• thunder-drive