We don't have synonyms for high court yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are high count, night court and high courts.
°An enclosed space; a courtyard; an uncovered area shut in by the walls of a building, or by different building; also, a space opening from a street and nearly surrounded by houses; a blind alley.
°The residence of a sovereign, prince, nobleman, or ether dignitary; a palace.
°To woo; to attempt to win over with social activities and displays of tact and affection.
°An enclosed space; a courtyard; an uncovered area shut in by the walls of a building, or by different building; also, a space opening from a street and nearly surrounded by houses; a blind alley.
°The residence of a sovereign, prince, nobleman, or ether dignitary; a palace.
°To woo; to attempt to win over with social activities and displays of tact and affection.