Changes

The second term which Lacan borrows from Jakobson to fill out his understanding of the symbolic order is metonymy: "following Jakobson, Lacan links metonymy to the combinatorial axis of language, as opposed to the substitutive axis" (Evans 113). If metaphor is a process of substitution, whereby one signifier comes to stand in for another in relation to a given signified, then metonymy is a purely diachronic movement above the barrier separating signifier from signified. In contrast to the vertical motion of metaphor, it is a horizontal movement along the chain of signification, as "one signifier constantly refers to another in a perpetual deferral of meaning" (Evans 114). As the only realm in which meaning is generated, the symbolic’s dependence on the metonymic function of signifier relations thus becomes the primary focus of Lacan’s concern with language. He emphasises the metonymic deferral of meaning that takes place in the incessant play of signifiers, referring to the ready movement of the chain of signifiers over the signifieds as glissement (slippage). This designation of the movement along the signifying chain as a slippage emphasises Lacan’s re-writing of Saussure’s concept such that the relationship between signifier and signified ceases to be stable (if arbitrary) and becomes profoundly unstable.