There are various synonyms for the word "water power". Firstly, it can be called hydro power or hydropower. This refers to the use of flowing water to generate electricity or mechanical power. Another synonym is water energy, which is the renewable energy produced by harnessing the power of water. Additionally, water can be used to power machines such as waterwheels or turbines, which is referred to as water-driven power or water-generated power. In some contexts, water power can also be used interchangeably with the term "aquatic power", which refers to any energy generated from water-based sources, such as waves, tides, or the ocean currents.