Abstract
This article aims to expose and comment on the theory of meaning presented by Heidegger in his "habilitation dissertation” on the Grammatica Speculativa in that time attributed to Duns Scotus. Heidegger, in his interpretation, interweaves elements of the theory of meaning present in Husserl and Duns Scotus. The doctrine of modes of meaning, of understanding and of being, of the Grammatica Speculativa, is read since an intentional phenomenological analysis. This article tries to expose this interlacement, point out the correspondences between the Husserl’s theory of meaning and the doctrine of the modes of meaning, of understanding and of being, in the Grammatica Speculativa.