big, enormous, great, huge, large, massive
little, small
neat, tidy (esp. BrE)
untidy (esp. BrE)

place sth in/into/on, put sth in/into/on
I put the letter in the envelope and placed it on the pile.
I've put the books into three separate piles.

dump
He dumped a pile of dirty clothes onto the floor.

add sth to
Just add that application to the pile.

flick through (esp. BrE), flip through (esp. AmE), look through, shuffle through, sort through
I sorted through the pile of documents until I found it.

amid a/the pile
The money lay amid a pile of unopened letters.

behind a/the pile
He was busy behind a pile of papers on his desk.

beneath a/the pile, under a/the pile
I pulled my diary from beneath a pile of files.

in a/the pile
The clothes were in a pile on the floor.

on a/the pile
She closed the magazine and threw it back on the pile.

pile of
a pile of books
I had piles of work to do.

be reduced to a pile of sth
The house was reduced to a pile of rubble.

the bottom of the pile, the top of the pile
I grabbed a shirt from the top of the pile.
At the bottom of the pile were the prostitutes and drug dealers. (figurative)

sort sth into piles
I sorted the clothes into two piles.

neatly
haphazardly
up
We piled the boxes up neatly.

against
We piled sandbags against the door.

on, onto
She piled food onto our plates.

on top of
They piled stones on top of the mound.

with
a table piled high with magazines

piled high

Pile is used with these nouns as the subject:
snow

Pile is used with these nouns as the object:
crate, trolley