The word 'water' in English is an uncountable noun.
Meaning: the clear liquid that is essential for life, and is in rain, rivers, lakes, and oceans.
Pronunciation: /ˈwɔːtə/
Examples of usage:
- The water flows from the tap.
- I'm drinking a glass of water.
- There's water all over the road after a heavy downpour of rain.
But you can say 'waters', plural noun:
Examples of usage.
- The cargo ship passed through British waters.