skeleton
noun
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the internal supporting structure that gives an artifact its shape“the building has a steel skeleton”frame
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the hard structure (bones and cartilages) that provides a frame for the body of an animalframe
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a scandal that is kept secret“there must be a skeleton somewhere in that family's closet”skeleton in the closetskeleton in the cupboard
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something reduced to its minimal form“the battalion was a mere skeleton of its former self”