подстаканникpud-stah-KAHN-nik[pət͡stɐˈkanʲːɪk]
a metal holder with a handle for a glass of hot tea
Closest in English: glass-holder, holder, tea-glass-holder. None of them covers it.
Pod is under and stakan is a glass: a metal holder with a handle that lets you drink scalding tea from a glass. Russian long-distance trains still serve tea in them and sell them as souvenirs. English has the cup holder, which lives in cars.
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