A is for the Astrometrics lab.
B is for Benamite crystals, used to power the quantum slipstream drive.
C is for Ceti Alpha VI.
D is for Lieutenant Commander Data.
E is for the Epsilon IX monitoring station.
F is for Fal Tor Pan, the means by which Spock was brought back for new adventures.
G is for Gracie. Also George, but we know who the real power in that relationship was!
H is for the Hippocratic Oath. Bashir puts much emphasis on it.
I is for the Indians, that according to Picard were way less important than the Baku.
J is for "Journey's End" which frustrates me because it keeps using the already outdated term "Indians" to refer to Native North Americans.
K is for Kolrami, a famous Zakdorn.
L is for Lirin, the species that communications officer Nano belongs to.
M is for Miles E. O'Brien, who needs no introduction.
N is for Neela, who told O'Brien all about jumja sticks. And tried to kill Vedek Bariel.
O is for the Orbs, they play a recurrent part in the series.
P is for the Prophets. They like Orbs.
Q is for Quadrants when you're in the wrong one it could take years to get back home.
R is for Row Row Row your Boat.........
S is for Spock, son of Sarek, son of Skon, son of Solkar, son of...