| AFK | Away From Keyboard. | The indicated player is not observing the game. |
| AI | Artificial Intelligence. | This common term is used to refer to computer-controlled players. |
| FF | Friendly Fire. | The ability to damage friendly players in the game. |
| FPS | First Person Shooter. | The kind of action game that the player sees from a first person point of view in a 3D world. |
| FpS | Frames per Second. | How many frames (instances of the gamestate) that are processed per second. |
| GG | Good Game. | The game was challenging or entertaining. |
| MMOG | Massively Multiplayer Online Game. | An on-line game with no end-condition, where masses of players can interact simultaneously. |
| MP | MultiPlayer. | Multiple (human) players can interact in the same game. Example. |
| NN | Nice Nade. | A well timed or nicely aimed attack with a grenade. |
| NS | Nice Shot. | A nicely aimed attack with a firearm. |
| NPC | Non-Player Character. | Characters in the game that are not actual players. |
| RTS | Real Time Strategy. | The kind of strategy game that has a smooth flow of the timeline and players can make actions in the game any time. Opposite of turn based gameplay. |
| SnaPS | Snapshots per second. | How many snapshots of the gamestate that are sent over the network per second. |
| RPG | Role Playing Game. | The kind of game that focuses on playing and developing a character. |
| SK | Spawn Kill. | The act of killing players where they enter the game, before they have a chance to fight. |
| SP | Single Player. | Only one human can play in the same game. |
| SS | Screen Shot. | An snapshot image with the rendered graphics of the game. Examples. |
| WH | Wall Hack. | A way of cheating by seeing opponents through surfaces that are opaque to other players. |