The list goes on. In Zambia and Zim, and possibly Malawi a dambo is a very prominent feature that could be a seasonal wetland but also a grassland depending on the time of year but is not a wet meadow. On many Zambian maps they are shown as wetlands but may have names that include the word plain in them. A dambo with a seasonal pond of water in it is called a pan, this is usually a waterhole in game parks. Many 'swamps' in Zambia are not true swamps but are in fact an ecosystem with their own classification, Zambesian Flooded Grasslands, this includes the Okavango.

This is the problem with a worldwide map with a mainly Western dominance in the classification system.

I have been thinking about slimes dams and tailings ponds. I think landfills more accurately refer to waste dumps while mine waste should have a separate tagging system, tailings ponds being just one of the possibilities. The term tailings I think refers specifically to mine or quarry waste. Tailings ponds are where the waste is a liquid or slurry, that may dry out over time but other waste is in a dry form and may be just heaped, more like a landfill. I will contact the proposer of tailings pond and see what he thinks.