Vox, constructio, sententia. Particolarità in Alcuino di York

The paper offers a reflection on some key concept of thoughts about language in the Middle Ages. We introduce firs an overview of the structure of knowledge about grammar, dialectics, and language. We move to the concept of linguistic expression analozying vox constructa, vox articulata, dictio, littera and the definition of sentence/clause. Alcuin witnesses in its grammar a variant of the well known Priscian's definition, and another in the dialectics. We trace a connection betwenn the definition of oratio as «ordinatio dictionum congruam sententiam perfectamque demonstrans» and other passages of the time and of Alcuin's letters.