The term ‘semantic function’ in the depth-psychology and humanistic linguistics corpus occupies a contested intersection between structural linguistics, phenomenology of language, and cognitive science. Benveniste provides the most theoretically rigorous treatment, distinguishing the semiotic—the sign as a discrete, finite, oppositively defined unit—from the semantic, which names the dimension of language as living enunciation, as the speaker’s act of meaning within a situation. For Benveniste, the semantic function is not derivable from the inventory of signs; it is the generative, phenomenological domain from which semiotic fixity ultimately arises. This hierarchical primacy of the semantic over the semiotic shapes his entire late linguistics and his conception of subjectivity. Allan’s cognitive-linguistic work on Ancient Greek polysemy treats semantic function at the level of grammatical categories, analyzing how the middle voice encodes subject-affectedness through a network of interrelated semantic roles, thereby linking grammatical form to meaning-function. In cognitive neuroscience, LeDoux and Siegel engage semantic function as a memory system—semantic memory as factual, context-free knowing, distinguished from episodic, autobiographical recall—connecting it to consciousness and self-construction. Lench’s work situates semantic function within affect science, noting that positive emotional states expand semantic activation across conceptual networks. Across these traditions, the term names the capacity of language or mind to produce, rather than merely store, meaning.