sheet

nouns

any broad thin expanse or surface
"a sheet of ice"
is a type of (narrower)
a wide and open space or area as of surface or land or sky
paper used for writing or printing
bed linen consisting of a large rectangular piece of cotton or linen cloth; used in pairs
(mathematics) an unbounded two-dimensional shape
"we will refer to the plane of the graph as the X-Y plane"; "any line joining two points on a plane lies wholly on that plane"
newspaper with half-size pages
a flat artifact that is thin relative to its length and width
(nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind
a large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel

verbs

come down as if in sheets
"The rain was sheeting down during the monsoon"
is a type of (narrower)
rain heavily
"Put on your rain coat-- it's pouring outside!"
cover with a sheet, as if by wrapping
"sheet the body"
is derived from
is a type of (narrower)
provide with a covering or cause to be covered
"cover her face with a handkerchief"; "cover the child with a blanket"; "cover the grave with flowers"