baroness
/ˈbærənɪs/noun
1- the wife or widow of a baron. Baroness is not used as a form of address, baronesses usually being referred to as 'Lady'.男爵夫人（不用作称呼, 一般以Lady相称）。
1.1
- a woman holding the rank of baron either as a life peerage or as a hereditary rank女男爵。
词源
late Middle English: from Old French baronesse, from baron （see BARON）.