security |sɪˈkjʊərəti|noun①Uncountable(of person, state, investment)安全security from or against [something]免遭某物security of employment就业安全②Uncountable(procedures, measures)安全措施security is very strict at the site这个工地的安保措施非常严格a security barrier/camera安全屏障/监控摄像头③Uncountableplus singular or plural verb(department)保安部门call security!去叫保安!④Uncountable and countable(guarantee)担保to take/leave [something] as security接受某物/把某物作为抵押to stand security for [somebody]为某人担保⑤Countable and uncountable(safeguard)保障