Doublet
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Doublet is:
- a doublet, a man's snug-fitting buttoned jacket that was worn in medieval and Tudor times
- a doublet, a fake gem composed in two sections, such as a garnet overlaying green glass
- a doublet, a type of lens, made up of two stacked layers with different refractive indices
- a doublet, one of two or more words of the same language that come from the same root
- a doublet, a quantum state of a system with a spin of 1/2