Definitions for "High Seas"
All parts of the sea other than 1) the exclusive economic zone of a country, or 2) the territorial sea of a country, or 3) the internal waters of a country.
All waters seaward of the territorial sea of the United States, except waters officially recognized by, the United States as the territorial sea of another country, under international law.
The entire ocean beyond the three-mile limit where not nation has special privileges or jurisdiction (note: nations now claim 10 mile, 12 mile, or more limits).