A is for Antimatter universe.
B is for the Beta Stromgren star system.
C is for Caitian stripper from Star Trek V.
D is for Delta IV. Where the men are men. And the women take celibacy oaths.
E is for Enterprise.
F is for Farragut.
G is for Geordi.
H is for Humans. Also known as Terrans. Earthmen. Earthers. One of the founding species and leaders of the Federation.
I is for Interstellar law.
J is for Janus VI, location of a Federation mining colony and the homeworld of the mysterious (and potentially lethal) Horta.
K is for KHAAAAAAAAAAN!!!
L is for Lunar Schooner, a recurring nickname used to describe human colonists who were born and/or grew up on Earth's Moon.
M is for Melkotians.