knowledge or perception of a situation or fact

a hard crystalline metamorphic form of limestone

A time of fast economic growth

Go to sleep

suffering from a nervous disorder

in a way that cannot be changed, reversed, or recovered.

a situation that is full of problems, usually because of a lack of organization or because of mistakes that someone has made

intense and selfish desire for something, especially wealth, power, or food

to jump

a sudden steep fall or drop