Stettiner Haff
geographical name
Stet·tin·er Haff shte-ˈtē-nər-ˈhäf 
variants or Polish Szczeciński Zalew
shchet-ˈsēn-skē-ˈzä-ˌlef
large lagoon on the coast of Pomerania between northeastern Germany and northwestern Poland into which the Oder River empties