AI: (short for Artificial Intelligence) A character at the party controlled by the computer.
Animation Cycle:Characters performing an action of indeterminate duration (such as examining a statue) will go through an animation sequence and return to a neutral pose every few seconds. The time from one neutral pose to the next is a single animation cycle. NPCs don't (usually) interrupt an animation cycle.
Cover: (also: Occlusion) When the sniper's view of an action is obstructed. Using cover is an important spy tactic.
Cycle: See "Animation Cycle."
DA: See "Double Agent."
Damon: The security agent at the party. Can never be the spy.
Dancing: (also: Dodging) To move erratically as the spy when you believe that the sniper is attempting to shoot you, in the hopes of causing the sniper to accidentally shoot a civilian, or delay them long enough for the mission completion timer to expire.
Lowlight: (also: LL) To mark a character as not suspicious. See also: Highlight, Neutral Light.
Map: A party venue where the characters interact with one another. Each map has its own unique configuration that affects gameplay.
Microfilm: (also: MF) An object which is transferred by the spy from one bookcase to another as part of the Transfer Microfilmmission. The microfilm is too small to be seen. Also used to refer to the mission itself.
Misdirection: A spy tactic in which they coerce the sniper to look somewhere else while they perform a spy action.
Missions: Tasks the spy can perform at the party. The spy can win by accomplishing missions before the game clock runs out.
Mission Type: One of the three rules that can be used to determine whether a spy has won:
Known x (or Kx): For example, "K4" means "The spy must complete four missions, all of which are known to the sniper."
Pick x of y (or Px/y): For example, "P3/5" means "The spy will activate five missions, three of which (chosen before the game starts) must be completed to win. The sniper knows which five missions are active and that the spy must complete three of them, but not which three."
Any x of y (or Ax/y): For example, "A3/5" means "The spy will activate five missions, three of which must be completed to win, but can choose which missions to perform during the game. The sniper knows which five missions are active and that the spy must complete any three of them."
Modern: A former SpyParty map. In terms of gameplay, it was equivalent to Balcony. Moderne is visually descended from Modern.
New Art: Refers to maps or characters that have had the final artwork created for them, replacing placeholder art. The distinction is made because the old art is still in the game because old-school players are nostalgic for them.
Normal Action: An action by a character that is not unique to the spy. Spies can perform normal actions with the left mouse button or the A button on a controller.
NPC: Short for "Non-Player Characters," a character at the part that isn't controlled by the spy.
Occlusion: See "Cover".
Old Art: Refers to maps or characters using placeholder artwork until the final artwork could be created. Old art is still in the game because old-school players are nostalgic for them.
OP: Short for "overpowered." Something in the game that the speaker feels is too advantageous. (Usually, they're talking about Mr. D's cane-side bug.)
Overtime: (also: OT) When gameplay continues after the spy's clock has reached zero, because the spy completed their last mission with less than 10 seconds left on the clock, or their last mission completion is pending.
Pad: The marked areas on the floor visible to the spy where certain actions become available.
Panopticon: (also: Panop) A map which was the predecessor to Library. It is still available in the "Old Art" maps.
Pathing: The path a character takes as they walk in the party. "Good pathing" or "bad pathing" generally refers to how closely a spy mimics the pathing of an NPC.
Time of Chaos: (also: ToC) The time at the beginning of the game when all the characters are in motion heading toward their initial positions. A spy may wish to capitalize on the confusion of the Time of Chaos to get off a hard tell.
Twitching: When the spy makes a small adjustment in their position, usually because they missed a pad or are too far away from the Ambassador or Seduction Target. Generally a bad thing to do, although pro spies may twitch when they judge that the sniper isn't looking.