Focus on the pronunciation of sheet
English definition of “sheet”
/ʃit/ n [C]
› a large rectangular piece of cloth used to cover a bed, or a rectangular piece of any material, such as paper, glass, or metal: She made up the bed with clean sheets. Do you have a sheet of paper I could use? She put the dough onto cookie sheets. › A sheet is also a thin layer of something: A sheet of ice formed on the puddles.