The Vietnamese word "sọt giấy" refers to a "waste-paper basket" or a "paper bin." It is a container used to collect waste paper or other types of trash, usually found in offices, homes, or classrooms.
In more formal contexts, you might use "sọt rác" (trash bin) to refer to a general waste container that can hold various types of rubbish, not just paper.
While "sọt giấy" specifically refers to a basket for paper, "sọt" on its own can refer to any type of basket or bin, used for various purposes.