[intransitive, transitive] to become or make sth available to the public for the first time; to start selling sth or being sold首次亮相；开始销售◆They recently debuted a phone incorporating a digital camera.他们最近推出了一款内置数码相机的手机。◆The shares debuted at €15.25.这只股票以 15.25 欧元的价格上市。