check·out /ˈtʃekaʊt/ n. 1. (从宾馆等的)结账离开;(从工厂等的)下班离开;(客人等的)离去;(书等的)出借 2. (宾馆等处)旅客必须结账离开的时间 3. 检查,检验;〈美〉熟悉机械性能 a preflight checkout 飞行前的检查 a training that includes checkout on several types of airplanes 包括掌握几种飞机性能的训练 4. (超市等的)付款台;(付款台前的)结账 an express checkout 快速结账台