1.Definition: a hard outer layer that covers something

Related Noun(s):encrustation, incrustation

Category: Objects

2.Definition: the outer layer of the Earth

Category: Objects

3.Definition: the trait of being rude and impertinent; inclined to take liberties

Related Noun(s):cheekiness, freshness, gall, impertinence, impudence, insolence

Category: General