Yes, sheet is a Scrabble word!

Verb

1. Come down as if in sheets

2. Cover with a sheet, as if by wrapping

Noun

1. Any broad thin expanse or surface

2. Paper used for writing or printing

3. Bed linen consisting of a large rectangular piece of cotton or linen cloth; used in pairs

4. (mathematics) an unbounded two-dimensional shape

5. Newspaper with half-size pages

6. A flat artifact that is thin relative to its length and width

7. (nautical) a line (rope or chain) that regulates the angle at which a sail is set in relation to the wind

8. A large piece of fabric (usually canvas fabric) by means of which wind is used to propel a sailing vessel