Black's Law Dictionary (2nd edition)dictionaries

High

This term, as used In various -compound legal phrases, is sometimes merely an addltlon of dignity, not Importing a com-parlson; hut more generally it means exalt-ed, either in rank or location, or occupying a position of superiority, and in a few in-etances it Implies superiority in respect to Importance, size, or frequency or publicity of use, e. g., “high seas,” “highway.”

Source: Black’s Law Dictionary 2nd Ed (1910)