n. A transportable building with single rooms, often used on remote work sites or as tourist accommodation.
n. A usually dry, eroded watercourse running only in times of heavy rain.
The Century Dictionary and Cyclopedia
n. In South Africa, a channel formed by the action of water; a ravine; a gully.
Word Usage
"We were twelve miles before the main body, and we came to a house under a high bushed hill, with a nullah, which they call a donga, behind it, and an old sangar of piled stones, which they call a kraal, before it."