village -- card that gives at least +2 actions
psuedo-village -- card that can be used to play at least 2 additional actions
However, I prefer descriptive phrases as opposed to treating "village" as a card type (which it's not). "Extra actions" and "acts like a village" are good. As in, "I am using Throne Room to play extra actions" when playing TR-TR-terminal. Or, "Here, Summon acts like a village". Or, "Procession-Pearl Diver gives me extra actions". Or "Crossroads is a village only the first time you play it."
Big Money Ultimate (capitalized)-- the optimized strategy of buying only basic Treasures and buying only basic Victory cards. Comes from simulation subforum.
Big Money + X (capitalized) -- the optimized strategy for card X which allows for only buying/gaining X, basic Treasures, and basic Victory cards. " Comes from simulation subforum.
Y + X -- the optimized strategy of buying mostly Y with limited numbers of X, basic Treasure, and victory cards. As in "Hunting Party + X" or "Rebuild + X".
Big Money (capitalized) -- The loose deck type laid out in WW's 5 deck type article which people seem to reference, but not have read. Thus, it's becoming an undefined term in casual usage and I try not to use it in favor of describing decks directly.
It seems better to simply describe the deck you are trying to build rather than say "I am going engine here." Great. Thanks for telling me nothing. Try instead, "I want to build a deck that gains as many Minions as possible and thins out coppers and shelters." Or "I will gain a lot Mystics, cantips, and other cards that do not draw dead because I expect a fat and bloated deck." Or "I want to build a deck that consistently draws itself and generates a lot of buys to give control over the end of the game. I will accomplish this by buying Ironworks to gain villages and draw cards, trash with Junk Dealer, and use Squire for buys and a way to get Familiar to slow down my opponent".
I do not like splitter or good stuff. These terms mean nothing to me. And proposed definitions seem sloppier than simply describing what you mean directly.