sheet (Noun) — Any broad thin expanse or surface. ex. "a sheet of ice"
sheet (Noun) — Paper used for writing or printing.
sheet (Noun) — Bed linen consisting of a large rectangular piece of cotton or linen cloth; used in pairs.
sheet (Noun) — (mathematics) an unbounded two-dimensional shape. ex. "we will refer to the sheet of the graph as the X-Y plane"
sheet (Noun) — Newspaper with half-size pages.
sheet (Noun) — A flat artifact that is thin relative to its length and width.
sheet (Noun) — (nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind.
sheet (Noun) — A large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel.
sheet (Verb) — Come down as if in sheets. ex. "The rain was sheeting down during the monsoon"
sheet (Verb) — Cover with a sheet, as if by wrapping. ex. "sheet the body"