What is the synonym for water?

There isn't one single perfect synonym for "water," as it depends on the context. Here are some options, depending on the specific meaning you want to convey:

General terms:

* H2O (chemical formula)

* Liquid (if referring to its state)

* Fluid (if referring to its ability to flow)

* The lifeblood (figuratively, referring to its importance for living things)

Specific contexts:

* Seawater (if referring to the water in the oceans)

* Freshwater (if referring to water in rivers, lakes, and groundwater)

* Rainwater (if referring to water that falls from the sky)

* Drinking water (if referring to water suitable for consumption)

* Irrigation water (if referring to water used for agriculture)

The best synonym for "water" will depend on the specific situation and what you want to emphasize.