the main structure that supports a building （建筑物的）骨架，框架◆Only the concrete skeleton of the factory remained. 这家工厂只有混凝土骨架还残留着。
(used as an adjective 用作形容词) used to describe the smallest number of people, things or parts that you need to do sth （维持运转所需的人员、物品或部件的）最少数量◆There will only be a skeleton staff on duty over the holiday. 假期将只留少数职员值班。