safety/ˋseftI; ˈseIfti/n [U]1 the state of being safe from danger or harm 安全: Some students are concerned about safety on campus. 有些学生对校园里的安全感到担心。For your own safety , please do not smoke inside the plane. 为了您自身的安全﹐请勿在飞机上吸烟。road safety (=being safe on roads) 交通安全+of There are fears for the safety of the hostages. 有人担心人质的安全。2 how safe something is to use, do etc 安全性: +of doubts about the safety of the drug 对这种药物的安全性的疑问safety standards/regulations/precautions etc (=things that are done in order to make sure that something is safe) 安全标准/法规/措施等 The device meets safety standards. 这设备符合安全标准。