I was typing and typing and typing... and then I got to a clause that resembled this (example): "Bob has better vocabulary than me." Should it be "Bob has a better vocabulary than me."? I mean, vocabulary consists of all the words that you use, right? So I tried to replace it hypothetically with the word "language". "Bob has better language than me." vs. "Bob has a better language than me." After a while, my head start to hurt. Sort of like when you look at a word for too long, it starts to look more and more ambiguous. Any thoughts?