The concept of semantics, its relations with the different branches of linguistics, and methods of semantic analysis and its theories: Sign theory, imagery theory, behavioral theory, Firthian theory, semantic fields theory, and semantic development regarding its: causes and forms, investigating some semantic phenomena like: synonymy, polysemy, antonymy, , inclusion, signifier and signified. Types of meanings: Phonetic , morphological, syntactic, lexical, social, psychological, contextual, and relative meaning.
