n. 1. the tide when the water is highest; high tide. [ wns=1 ] Syn. -- high tide, high water. [ WordNet 1.5 ]
2. Water at its highest level, as in a river during a flood. [ PJC ]
n. Water in which dishes have been washed. “Suds and dishwater.” Beau. & Fl. [ 1913 Webster ]