Noun
A woman skilled in equestrianism; a horsewoman.
Source: Webster's dictionaryAfter her mysterious role in a family tragedy, passionate, strong-willed Thea Atwell, age fifteen, has been cast out of her Florida home, exiled to an equestrienne boarding school for Southern debutantes. Source: Internet
In 1930, following a family tragedy that leaves her estranged from her parents and twin brother, 15-year-old Thea Atwell is sent from her secluded Florida home to an equestrienne boarding school in the Blue Ridge Mountains. Source: Internet