A tether is a cord or fixture that anchors something movable to a reference point which may be fixed or moving. There are a number of applications for tethers: balloons, kites, tethered wind-energy conversion systems, anchors, tethered water-flow energy conversion systems, towing, animal constraint, power-kiting,... Error creating thumbnail: This article contains embedded lists that may be poorly defined, unverified or indiscriminate.