👉 In linguistics, a diactinal is a type of syntactic structure that involves two or more words with different meanings. These structures are often used in sentence construction to express contrasts between similar components (such as "to be" and "being") or to create a sense of contrast between two parts of speech within a word. For example, the sentence "She is reading a book" has two diactals: "she" and "reading." The first diactal expresses the subject