Meaning of high sea

high' sea'

Pronunciation: [key]
  1. the sea or ocean beyond the three-mile limit or territorial waters of a country.
  2. Usually,
    1. the open, unenclosed waters of any sea or ocean; common highway.
    2. Law.the area within which transactions are subject to court of admiralty jurisdiction.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.