Adventure
An adventure in a roleplaying game is a single, discrete story. Several adventures in sequence form a campaign. Game companies often publish pre-made adventure supplements. These are often called modules.
Adventures consist of certain basic elements common to all forms of storytelling:
Exposition
"You all meet in a tavern..." For the love of God, keep wrintig these articles.
The action
The party journeys to the dungeon and begins hacking up orcs. Finally! This is just what I was looikng for.
Denouement
Everybody divvies up the treasure, and the wild-eyed old man reveals what that amulet the Chieftain was wearing actually does.