The term langage occupies a foundational and contested position in the depth-psychology corpus, functioning above all as the horizon within which langue, parole, discourse, and subjectivity are mutually articulated. Benveniste is its most rigorous theorist: for him, langage designates the total human faculty of symbolic representation — heterogeneous, both personal and social, mental and physiological — which langue, as a structured system, organises but does not exhaust. This distinction, inherited critically from Saussure, is never merely terminological. It grounds Benveniste’s argument that langage is the condition of possibility for culture, consciousness, and intersubjectivity alike: the child’s awakening to selfhood coincides with its entry into langage, and no society is conceivable apart from it. Crucially, Benveniste distinguishes langage from its instrumental reading: to treat it as a mere vehicle of communication is to confuse it with discourse already in motion. Langage is symbolic at its core — it establishes the relation of signification between sign and world. From Lacan’s psychoanalytic flank, langage is the pre-existing structure into which each subject enters, prior to any individual somatology or psychology; its antinomy with parole — the more functional langage becomes, the less apt for genuine speech — is one of the central productive tensions in the Écrits. Together these voices insist that langage is not an instrument but the constitutive medium of the human.