A spoiler is a summary or description of events from an episode or novel, which can spoil a person's enjoyment of said episode or novel.

Articles on this site with major spoilers will use the following template to warn the unsuspecting...

MAJOR SPOILERS
WARNING! This article contains MAJOR spoilers for the recently released novel Spoiler. Caution is advised.

MAJOR SPOILERS
WARNING! This article contains MAJOR spoilers for the recently released episode Spoiler. Caution is advised.