Listing is the term used for the output of the compiler. It includes the original source code, the full code of copybooks and INCLUDs and translated commands from precompilers, preprocessors or translators (like CICS, DB2 etc.).
Depending on your compile options, the listing may include lists and cross-references of data items and sections, developed assembler code and some more helpful information.
List lib is the term usualy used for the library where all the listings are saved. For example, in my shop we have an IEBGENER step to copy the listing to a special library.