A is for Antimatter Magnetic Containment Bottle.
B is for Betelgeusian Ambassador the Federation.
C is for Cargo Pods that Chekov found on Ceti Alpha V. That were of a current design and not possibly left behind with Khan all those years ago.
D is for David Marcus.
E is for the Enterprise-J. She existed in at least one timeline and was momentarily visited by 22nd century Earth captain Jonathan Archer.
F is for Fesarius the Flagship of the First Federation.
G is for Gary Seven and his interesting 'cat'.
H is for Harcourt Fenton....MUDD!!
I is for Infinite Diversity in Infinite Combinations.
J is for J-class vessel.
K is for Klingon lingerie.
L is for Lateral power.
M is for Mugato venom.
N is for the NuEnterprise 1701.
O is for the Observation Lounge. Where Picard and Riker piddle away their idle time playing Halo.
P is for Plato of ancient Earth. He inspired the powerful Platonian culture of the late 23rd century.
Q is for Quadrotriticale. Quark (another Q) lost his shirt gambling on futures contracts of the stuff.
R is for Rigelian Kassaba Fever.
S is for Sahndara, the original star system of the Platonians over two thousand years ago.
T is for T'Pol's bum.
U is for Ullian telepathic skills that can be carried too far.
V is for Valeris' bangs.
W is for the War between Earth and the Romulans that preceded the birth of the Federation.