pile up vs compile

pile up and compile both are verbs.

Word	Noun	Adjective	Verb	Adverb
pile up	No	No	Yes	No
compile	No	No	Yes	No

As verbs, pile up and compile are synonyms defined as:

Other synonyms of pile up include accumulate, amass, collect, hoard, roll up.

pile up (verb)	compile (verb)
increase in amount by collecting or gathering	put together out of existing material
arrange into piles or stacks	use a computer program to translate source code written in a particular programming language into computer-readable machine code that can be executed
get or gather together	get or gather together