The concept of modern linguistics and its approaches: descriptive, historical, comparative and applied. Shedding light on the contributions of contemporary linguists such as De Saussure, Bloomfield, Firth and Chomsky. Applications of the modern linguistic theory in Arabic; the various linguistic levels from a modern linguistic point of view; Contributions of old Arab linguists in shaping the theory of language, linguistic issues in phonetics, morphology, syntax, semantics and lexicology.
