A is for Antares.
B is for Bashir. Julian Bashir.
C is for Chang. One-eyed Klingon bastard.
D is for Denebian slime devil. Nasty little buggers.
E is for eel. Such as the Ceti Eel that went into Chekov's ear.
F is for Friends. Spock always remained one with Kirk, and vice versa. Even in different timelines.
G is for Gorn.
H is for Hairdos. Mid-23rd century Starfleet women often had very tall ones.
I is for Isolinear optical chips.
J is for Jet Propulsion Laboratory. It participated in the Voyager deep space probe program of the late 20th century that indirectly resulted in the creation of V'Ger.
K is for Kirk. 'Nuff Said.
L is for Landru, the Surak of planet Beta III in star system C-111.