The main aim of this brief and purposely radical essay is to investigate further possibilities for empirical research in natural classification of semiosis (signs as wholes). Before introducing emon – a missing term in the taxonomy of signs – we make a distinction between the natural and artificial, and between the taxonomic and meronomic classifications of signs. Natural classifications or typologies are empirically based, while artificial classifications do not require empirical test. Meronomy describes the relational or functional structure of the whole (for instance triadic, circular, etc. composition of sign), while taxonomy categorizes individuals (individual signs). We argue that a natural taxonomy of signs can be based on the existe...