high tide

Short definition from Wiktionary

Noun

1. 1
   The natural tide at its highest level for a particular tidal cycle at a certain place.
2. 2
   The time of day when the sea has risen to its highest level.
3. 3
   A climax, culminating point or phase.
4. 4
   Synonym of menstruation.
5. 5
   A great festival.
6. 6
   Alternative form of high tide.