In obsolete|lang=en terms the difference between water and current
is that
water is (obsolete) ancient philosophy while
current is (obsolete) running or moving rapidly.
As nouns the difference between water and current
is that
water is (uncountable) a chemical, found at room temperature and pressure as a clear liquid, having the formula h₂o, required by all forms of life on earth while
current is the part of a fluid that moves continuously in a certain direction.
As a verb water
is to pour water into the soil surrounding (plants).
As an adjective current is
existing or occurring at the moment.