A is for Anij. Picard fell for her and he should have been court-martialed.
B is for the Benecia Colony, mentioned twice during the course of the original series.
C is for Cardassian Cuisine.
D is for Delta Flyer.
E is for Error. One of the favorite expressions of the twisted, mutated deep space probe calling itself Nomad.
F is for fuel. Something apparently starships never run out of. Unless you're onboard a shuttlecraft and Spock's in charge. Then he'll just torch it all off.