[] 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。