A dictionary is the world's most complicated circular argument.  The only thing it ever quotes is itself; it is entirely self-contained and has absolutely no bearing on real language.  A dictionary is the kind of thing only an asshole could love, someone obsessed with pedantics and semantics.  Someone who would point out that pedantic doesn't have a plural and isn't really a noun.  The worst part, though, is that it innoculates language against natural evolution.  I want free-range language, words running loose.  If anyone ever asks you to define a word for them, punch them in the mouth and then use it in a way that makes sense enough to you.  

"My hand hurts!  Your face doesn't!  Solipsism!"

That's communication, baby.