Here follows a bunch of terms commonly used in the Strategy & Tips forums. Not all acronyms but very common terms. There is almost always someone asking what some of these terms mean.
Otherwise I agree with the acronyms listed by Roxtar and LAnkou. I completely disagree with those given by Bushface (I've never seen them used).
I have tried not to list previously mentioned acronyms. I apologize if I repeat what others have already listed.
Wonders:
'Mids=Pyramids
ToA=Temple of Artemis
SoL=Statue of Liberty
Wat=Angkor Wat
Chicken Pizza,Chitza,Itza,The Great Chicken=Chichen Itza (Like the swedish saying goes: "A Beloved Child has Many Names")
The Epic=Heroic Epic
Heroic Theater=Globe Theater/Heroic Epic combination
Henge, The Henge=Stonehenge
GL, The Lighthouse=Great Lighthouse (Often called GL if there is no chance of confusion with the Great Library)
UN=The United Nations (doh)
Sankore=The University of Sankore
Taj=The Taj Mahal
Units:
Phants=War Elephants (I've never seen them called Jumbo)
Chokos=Cho-Ko-Nus
Cavs=Cavalry
Gren=Grenadier
Treb=Trebuchet
Cat=Catapult
Prat=Praetorian
All Great People given by their initials, i.e. GA, GS, GP etc.
All units ending in "man" are usually referred to without the "man" part,
e.g. Axes, Swords, Maces, Rifles etc.
Leaders:
Hatty=Hatshepsut (Egypt)
Lizzy,Izzy=Elizabeth (England) (Lizzy preferable)
Vicky=Victoria (England)
Issy=Isabella (Spain)
Monty=Montezuma (Aztec)
Fred,Freddy=Frederick the Great (Germany)
Cat=Catherine (Russia)
Toku=Tokugawa (Japan)
Techs:
CoL=Code of Laws
Lit=Literature
Philo=Philosophy
Poly=Polytheism
SciMeth=Scientific Method
Civics:
Hed, Hed Rule=Hereditary Rule
SP=State Property
General Civ IV Terms:
FE=Farm Economy
SE=Specialist Economy
CE=Cottage Economy
HE=Hammer Economy (Debatable. Implies winning by production advantage rather than specialist/commerce advantage)
(Dangerous Acronyms. I'd recommend a special committee headed by forum members Acidsatyr, DaveMcW and a few others to debate the exact definitions further
)
Economic rushes: Whiprush/Poprush/Whip (slavery), Choprush/Chop (forest chopping), Buy/Goldrush (universal suffrage purchase)
Military rushes: Axerush, Cavrush etc. Catrush (catapult rush, often implies a construction beeline as well)
There ought to be no confusion between economic and military rushes.
Otherwise I agree with the acronyms listed by Roxtar and LAnkou. I completely disagree with those given by Bushface (I've never seen them used).
I have tried not to list previously mentioned acronyms. I apologize if I repeat what others have already listed.
Wonders:
'Mids=Pyramids
ToA=Temple of Artemis
SoL=Statue of Liberty
Wat=Angkor Wat
Chicken Pizza,Chitza,Itza,The Great Chicken=Chichen Itza (Like the swedish saying goes: "A Beloved Child has Many Names")
The Epic=Heroic Epic
Heroic Theater=Globe Theater/Heroic Epic combination
Henge, The Henge=Stonehenge
GL, The Lighthouse=Great Lighthouse (Often called GL if there is no chance of confusion with the Great Library)
UN=The United Nations (doh)
Sankore=The University of Sankore
Taj=The Taj Mahal
Units:
Phants=War Elephants (I've never seen them called Jumbo)
Chokos=Cho-Ko-Nus
Cavs=Cavalry
Gren=Grenadier
Treb=Trebuchet
Cat=Catapult
Prat=Praetorian
All Great People given by their initials, i.e. GA, GS, GP etc.
All units ending in "man" are usually referred to without the "man" part,
e.g. Axes, Swords, Maces, Rifles etc.
Leaders:
Hatty=Hatshepsut (Egypt)
Lizzy,Izzy=Elizabeth (England) (Lizzy preferable)
Vicky=Victoria (England)
Issy=Isabella (Spain)
Monty=Montezuma (Aztec)
Fred,Freddy=Frederick the Great (Germany)
Cat=Catherine (Russia)
Toku=Tokugawa (Japan)
Techs:
CoL=Code of Laws
Lit=Literature
Philo=Philosophy
Poly=Polytheism
SciMeth=Scientific Method
Civics:
Hed, Hed Rule=Hereditary Rule
SP=State Property
General Civ IV Terms:
FE=Farm Economy
SE=Specialist Economy
CE=Cottage Economy
HE=Hammer Economy (Debatable. Implies winning by production advantage rather than specialist/commerce advantage)
(Dangerous Acronyms. I'd recommend a special committee headed by forum members Acidsatyr, DaveMcW and a few others to debate the exact definitions further
)Economic rushes: Whiprush/Poprush/Whip (slavery), Choprush/Chop (forest chopping), Buy/Goldrush (universal suffrage purchase)
Military rushes: Axerush, Cavrush etc. Catrush (catapult rush, often implies a construction beeline as well)
There ought to be no confusion between economic and military rushes.
and MIAS,IATAMN is 
), I noticed no one has mentioned the acronyms for the popular mods. I'll start out:
