highwater

n.	1.	the tide when the water is highest; high tide.
	2.	Water at its highest level, as in a river during a flood.

Thesaurus

Noun

1.

highwater - the tide when the water is highest   high tide, high water tide - the periodic rise and fall of the sea level under the gravitational pull of the moon direct tide - the occurrence of high tide on one side of the earth coinciding with high tide on the opposite side neap, neap tide - a less than average tide occurring at the first and third quarters of the moon springtide - a greater than average tide occurring during the new and full moons