barre
/bɑː, 〈法〉 bɑːr/noun
1
- a horizontal bar at waist level on which ballet dancers rest a hand for support during certain exercises（芭蕾舞演员练功时用的）把杆。
2
- as modifier denoting a chord played using the barré method（用食指按弦变音法演奏的）和音。
词源
French.