High Church of or adhering to a tradition within the Anglican Church emphasizing ritual, priestly authority, sacraments, and historical continuity with Catholic Christianity.
High German the standard literary and spoken form of German, originally used in the highlands in the south of Germany. The establishment of this form as a standard language owes much to the biblical translations of Martin Luther in the 16th century.
High Holidays the Jewish festivals of Yom Kippur and Rosh Hashana.
High Mass a Roman Catholic or Anglo-Catholic mass with full ceremonial, including music and incense and typically having the assistance of a deacon and subdeacon.
high priest the chief priest of the historic Jewish religion.
high seas the open ocean, especially that not within any country's jurisdiction.
high table a table in a dining hall, typically on a platform, for the most important people, such as the fellows of a college.
high treason the crime of betraying one's country, treason against the sovereign or state.
See also friends in high places, hang as high as Haman, come hell or high water, higher, live high on the hog, the mile-high club, plain living and high thinking.