The term SEINE refers to a type of fishing NET used in commercial fishing. It is a large NET that hangs vertically in the water and is usually operated by two boats. The NET is held open by floats at the top and weights at the bottom, and is then drawn through the water by the boats. The three crossword solutions NET (3 letters), FISHNET (7 letters) and FISHSNARE (9 letters) all refer to this type of fishing NET.