Noun crust has 3 senses
  1. crust, Earth's crust - the outer layer of the Earth
    --1 is a kind of layer
    --1 is a part of lithosphere, geosphere
    --1 has parts: asthenosphere
    --1 has substances: sial; sima
    --1 has particulars: horst; plate, crustal plate
  2. crust, incrustation, encrustation - a hard outer layer that covers something
    --2 is a kind of covering, natural covering, cover
    --2 has particulars: tartar, calculus, tophus
    Derived form: verb crust1
  3. crust, gall, impertinence, impudence, insolence, cheekiness, freshness - the trait of being rude and impertinent; inclined to take liberties
    --3 is a kind of discourtesy, rudeness
    --3 has particulars: chutzpa, chutzpah, hutzpah
,Verb crust has 1 sense
  1. crust - form a crust or form into a crust; "The bread crusted in the oven"
    --1 is one way to
    change surface
    Derived form: noun crust2
    Sample sentence:
    Something ----s