A hollow cylinder of wickerwork, like a basket without a bottom. Gabions are made of various sizes, and filled with earth in building fieldworks to shelter men from an enemy's fire.
An openwork frame, as of poles, filled with stones and sunk, to assist in forming a bar dyke, etc., as in harbor improvement.
Wicker baskets (woven twigs, open ended) filled with earth or stone to build, repair, or reinforce earthen works. Modern equivalents use "chicken" wire.