Encyclopedia of Game Concepts

Cheese = A tactic that is considered unfair, improper, and "not in the spirit of the game".  Since the rules
     of the game still allow such a tactic to be used, it is not cheating in the proper sense, but is viewed as
     an abuse of the rules; loopholes in the game mechanics will also fall into this category.  The term
     "cheese" came from the Starcraft 2 online community, as multiplayer Starcraft 2 sees many attempts
     at such tactics.  One example includes building towers at the enemy base at the beginning of the
     game.  It then becomes the task of the Designers to find a way to change the rules of the game such
     that these "cheese" tactics become ineffective.  Even then, cheese can still be very effective against
     novice players, who have not been able to formulate safeguards against such techniques.

Dynamic = noun.  Also called "emergent gameplay", it is a tactic that arises from combining elements of
     the game mechanics.  This is a factor of the game mechanics where the rules of the game cause
     players to adopt certain techniques to response.  An example of this is killing a non-threatening unit
     that an enemy character is about to kill in order to deny that enemy the Experience Points that would
     have otherwise been gained.

Dynamic Gameplay = The principle by which a game demands the adoption of different (or a broader)
     strategy in reaction to the game state.  Chess is an excellent example, where one must respond to
     opponents actions and the middle and end states demand different sets of actions to accomplish   
     one's goal.

Encounter = A self-contained, modular task presented before the player where the core gameplay
     mechanics are realized.  The old Final Fantasy games demonstrate this sort of system.

Stuff shall soon be added.  Scrivero' qualcosa presto.  Ci vediamo.