| C | Clondyke |
| calm | a nano effect which mesmerizes a mob and makes it stop attacking, synonymous with mez |
| camp | 1. the act of sitting and waiting for a unique mob or NPC to spawn, usually in order to complete a quest or kill them for some rare item the mob drops |
| camp | 2. to stay in one place killing a particular type of mob repeatedly for xp (example: "We spent 5 hours last night camping borgs at the ruins") |
| camp | 3. an area where a certain type of mob spawns in large numbers (exapmle: "There's a rhinoman camp North of here, let's go hunt there") |
| camp | 4. a term from EQ, to sit and log out |
| Carb | Carbonum armor, popular playermade armor type. |
| CAS | CAS Symbiotic armor, a premium armor created through tradeskills and requiring notum chips or fragments to make |
| CAV | Central Artery Valley |
| CC | Crowd Control: The ability for certain classes (Crat, NT, others) to "control" enemy creatures, by rooting/slowing/mezzing/scaring them. Generally this is done so that the team can focus on one mob at a time and not have to worry about adds. |
| CDS | Cyborg death squad armor. Fixer armor that drops from cyborgs. |
| CH | Complete Heal, perfect heal nano from docs |
| Chain | when something happens multiple times in a row or very quickly. Usually refers to multiple debuffs/roots being used on you (chain roots, for example). |
| char | character |
| chem | the Chemistry skill |
| chest | armor breastplates are sometimes called chests |
| Circle of Death | Used in grouping, when one member of the team, usually the puller, runs around in a circle around the group while they shoot at the mob. The monster will eventually switch over to attack someone else, and then they will run around the group in a circle of death, etc. Can also be used to describe surrounding a monster in a "circle" and attacking from all angles. |
| CL | Crowd Limiting: A feature which will limit the number of players that can be present at a Notum Wars tower battle. Usually somewhere around 35 players per side (attackers/defenders). Anyone over that limit will be (randomly?) teleported to somewhere else in the zone. |
| clr | clear, typically heard in dungeons to indicate all the mobs have been cleared from the dungeon |
| con | consider, the degree of difficulty of a mob in relation to you characters current level, designated by the color of it's life bar (example: "Since I upgraded my weapon I have no trouble soloing orange con mobs.") |
| congo rats | funny way of saying congrats, meaning congratulations |
| crat | bureaucrat |
| creds | Credits, money in AO. |
| crowd Control, CC | Using roots, snares, taunts, detaunts, and split pulling to manage the number of mobs being engaged at a given time. |
| CRPG | computer role playing game, an RPG played on a computer |
| CS | Click saver. Third party program that allows you to search for spesific mission rewards and missions in spesific locations or both. |
| CS | customer service, may also refer to Clicksaver; an addon utility to make finding particular mission rewards easier |
| cuppa | Cup of coffee. |
| cya | see ya, slang for "I'll see you later" |
