sheet S2 W2 [countable]
a large piece of thin cloth that you put on a bed to lie on or lie under [↪ blanket, duvet]:
for a bedDH
I'll go and find you some clean sheets and blankets.
white cotton sheets
change the sheets (=put clean sheets on a bed)
a piece of paper for writing on, or containing information
clean/blank sheet of paper (=one with no writing on it)
a thin flat piece of something such as metal or glass, that usually has four sides
thin flat piece
sheet of➔ sheet metal
a sheet of glass
a large flat area of something such as ice or water spread over a surface
large flat area
A sheet of ice covered the lake.
a sheet of rain or fire is a very large moving mass of it
Sheets of flame shot into the air.
The rain was coming down in sheets.
a rope or chain attached to a sail on a ship that controls the angle between a sail and the wind