Crust
WordNet

noun


(1)   The trait of being rude and impertinent; inclined to take liberties
(2)   The outer layer of the Earth
(3)   A hard outer layer that covers something

verb


(4)   Form a crust or form into a crust
"The bread crusted in the oven"
WiktionaryText

Noun



  1. A more solid, dense or hard layer on a surface or boundary.
  2. The external layer of most types of bread.
  3. The outermost layer of the lithosphere of the Earth. Thickness ranges between 15-35 km.
  4. Nerve, gall.
    You've got a lot of crust standing there saying that.
 
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