This volume is a collection of original contributions that address the problem of words and their meaning. This represents a still difficult and controversial area within various disciplines: linguistics, philosophy, and artificial intelligence. Although all of these disciplines have to tackle the issue, so far there is no overarching methodology agreed upon by researchers. The aim of the volume is to provide answers based on empirical linguistics methods that are relevant across all the disciplines and provide a bridge among researchers looking at word meaning from different angles.