Timbre is a perceptual property of sounds, encompassing a complex set of attributes collectively contributing to the inference of a sound’s source but also acting as qualia. Typically, timbral qualities of sounds are verbally communicated through descriptions such as bright, rough, or full. There is converging evidence that timbral vocabularies can hold intersubjective reliability and are constrained by discrete conceptual-metaphorical schemas. These metaphors we listen with are not crucial for perceptualising timbre—one can compare and recognize timbres without having to tag them verbally—but are central to conceptualising timbre by allowing to make sense of its perceptual representation through indexing other, more commonly shared semantic representations. A major body of studies have sought to construct “semantic spaces” of timbre. These are geometrical configurations resulting from factor analysis of stimuli ratings along semantic scales. This approach has contributed greatly to our psychoacoustical understanding of timbre, but the broader cognitive questions concerning the ability of the human brain to draw metaphors across sensory and other experiential domains are far from trivial. In this talk, semantic spaces of timbre are examined in the context of Gärdenfors’ theory of conceptual spaces, a framework for representing information on the conceptual level based on geometry, and vice versa.