The term 'surplus waters' can be defined as an excess of water or an overflow of water from a particular location. There are numerous synonyms for 'surplus waters' including excess water, extra liquid, overflow, inundation, spillover, excess runoff, surplus stream, surplus precipitation, and surplus rainfall. These synonyms are used in different contexts such as in the field of hydrology, agriculture, and civil engineering. 'Excess water' is typically used to describe a condition where there is too much water in an area, such as in a river or a reservoir. 'Overflow' refers to a situation where water is flowing out of a container or a pipe. Similarly, 'inundation' is used to describe a flood or a deluge of water.