A sheet, a piece of cloth cut and finished as bedlinen.

A broad flash of lightning, with no visible bolt, due to reflection.

A sheet of paper containing notes used to assist (with or without permission) on a test. / (idiomatic) Any summary or quick reference used as a shortcut or reminder, such as an aid for public speaking.

A burial shroud. / (historical) A collection of tallow rising up against the wick of a candle, once regarded as an omen of death.

Pre-hardened plaster of Paris (gypsum) sold in large panels and used as a wall surface in building construction.

(nautical) a large, spare anchor used in an emergency / (by extension) a source of help in times of danger; last resort

A broad glacial mass with a relatively flat surface.

Alternative form of timesheet

A bedsheet, usually nowadays fitted, that fits a crib mattress. / Synonym of cheat sheet.

A sheet set up under the winnowing basket or machine to catch any seed which falls.