There's already been some discussion on Less Wrong about what exactly it means for a claim to be meaningful. This post focuses on the negative definition of meaning: what sort of statements do people make where the primary content of the statement is non-empirical?

Here we go again..

if your are worried about non-empirical statements...Hey!..why not call them non-empirical staments. "Invisible undetectable gorilla" is meaningful by a number of robust and widely used definitions of "meaning".