Świna (shvēˈnä) [key] or Swine svēˈnə, channel, 13 mi (21 km) long, NW Poland, leading from the Zalew Szczeciński (Ger. Stettiner Haff ) to the Baltic Sea. It passes between the islands of Wolin and Usedom. Świnoujście, on Usedom, lies at its mouth.
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