چكيده فارسي :
Elements of the sentence completes each other as in a chain in which every connected parts closely completes the other. Sometimes the main elements of the sentences such as nouns , verbs , adjective and adverbs may not be convenient in the sentence. They might need other parts to complete and clarify their meanings .One example of such elements of clarification is the apposition which refers to nouns or pronouns placed beside other nouns to identify or describe it. This research deals with the appositives , appositive phrases and clauses , the types of apposition and their application in both English and Arabic languages.
