a person who compiles information (as for reference purposes)
"The library hired a compiler to organize its vast collection of historical documents into an easy-to-reference index."
(computer science) a program that decodes instructions written in a higher order language and produces an assembly language program
"The compiler successfully translated the high-level Python code into efficient assembly language instructions."
One who compiles.
"The compiler gathered data from various sources to create a comprehensive report on market trends."
The word compiler entered English via the path of Middle and Anglo-Norman French before arriving in its current form. It originally referred to someone who compiled works or gathered information together.