contents vs listing

contents and listing both are nouns.

Word	Noun	Adjective	Verb	Adverb
contents	Yes	No	No	No
listing	Yes	No	No	No

As nouns, listing is a hypernym of contents; that is, listing is a word with a broader meaning than contents:

contents: a list of divisions (chapters or articles) and the pages on which they start
listing: a database containing an ordered array of items (names or topics)

Other hypernyms of contents include list, table, tabular array.

contents (noun)	listing (noun)
a list of divisions (chapters or articles) and the pages on which they start	the act of making a list of items
(usually plural) everything that is included in a collection and that is held or included in something	a database containing an ordered array of items (names or topics)