A peninsula (Latin: paeninsula from paene "almost" and insula "island") is a landform surrounded by water on most of its border while being connected to a mainland from which it extends. The surrounding water is usually understood to be continuous, though not necessarily named as a single body of water. Peninsulas are not always named as such; one can also be referred to as a headland, cape, island promontory, bill, point, fork, or spit. A point is generally considered a tapering piece of land projecting into a body of water that is less prominent than a cape. A river which courses through a very tight meander is also sometimes said to form a "peninsula" within the (almost closed) loop of water. In English, the plural versions of peninsula are peninsulas and, less commonly, peninsulae.
One form of the peninsula is the headland and the particularly narrow spit that has been washed up . If a peninsula is located in an inland body of water (lake, river) it is also referred to as an "inland peninsula".
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