As nouns the difference between pile and crush
is that
pile is a dart; an arrow while
crush is a violent collision or compression; a crash; destruction; ruin.
As verbs the difference between pile and crush
is that
pile is to drive piles into; to fill with piles; to strengthen with piles while
crush is to press or bruise between two hard bodies; to squeeze, so as to destroy the natural shape or integrity of the parts, or to force together into a mass.