Difference between (sheet x leaf)

Dear all,

I would like to share the diference between this 2 words.


Sheet

1.
a large rectangular piece of cotton, linen, or other material used as an article of bedding, commonly spread in pairs so that one is immediately above and the other immediately below the sleeper.
2.
a broad, relatively thin, surface, layer, or covering.
3.
a relatively thin, usually rectangular form, piece, plate, or slab, as of photographic film, glass, metal, etc.
4.
material, as metal or glass, in the form of broad, relatively thin pieces.
5.
a sail, as on a ship or boat.

_____________

LEAF

1.
one of the expanded, usually green organs borne by the stem of a plant.
2.
any similar or corresponding lateral outgrowth of a stem.
3.
a petal: a rose leaf.
4.
leaves collectively; foliage.
5.
Bibliography . a unit generally comprising two printed, blank, or illustrated pages of a book, one on each side.


Thanks!