quadrille

n (music for a) square dance for four couples 四对方舞（曲）: play/dance a quadrille 演奏四对方舞曲[跳四对方舞].

QED, qr, qt, qto, qty, qua, quack, quack-quack, quackery, quad, quadr(i)-, Quadragesima, quadrangle, quadrangular, quadrant, quadraphonic (also quadrophonic), quadraphony (also quadrophony), quadratic equation, quadrennial, quadrilateral, quadrillion, quadrophonic, quadrophony, quadruped, quadruple, quadruplet, quadruplicate, quaff, quagmire, quail, quaint, quaintly, quaintness, quake, Quaker, qualification, qualified, qualifier, qualify, qualitative, qualitatively,