The purpose of this study is to analyze the type of repetitive expressions and the speaker discourse strategy in oral text 『Sa-gong』 and 『Doo-rung』. The reason why we chose to focus on the speaker's discourse, is because the nature of oral text is one-sided narration from the narrator to listeners. The term 'repetitive expression' is defined as 'mentioning previous articulation - partly or the whole of it - again at the subsequent articulation in the same (or similar) form or meaning, under single core topic'.
To analyze repetitive expressions used in oral texts, firstly we retransferred the oral text to quantify repeatedly used expressions. Based on the result, we analyzed the types and functions of repetitive expressions, using textlinguistics and communication theory as theoretical basis.
Types of repetitive expressions are largely divided into formative and semantic layers. Formative layers can be further divided into lexical and grammatical repetition according to which component of sentences is being repeated. Next, the function of repetitive expression is divided into Cohesion Devices, (Information Supply) providing information, and focus functions according to the discourse strategy used by the speaker in communication situation.
First, Cohesion Devices means the utilization of repetitive expression as a syntactic device to carry on speaker's articulation. This can be divided into speech-cohesion, generalization, and summarization. Speech-Cohesion is utilization of repetitive expressions as a syntactic device, to link between previous and subsequent articulations. Generalization is a continuation of speech by subordinating previous articulation under subsequent one. Narrator can efficiently talk with repetitive expressions, which generalizes the contents of the previous articulations within subsequent articulations. Summarization is a comprehensive summarization of 'what has been talked so far' to prepare for the initiation of next articulation. This enables the narrator to finish the current story and move on to the next topic, and listers to remind the contents of current articulation.
Second, providing information function means the utilization of repetitive expression as a linguistic strategy to make listeners understand the speaker's speech, when information is being transported directly as a form of spoken language. This can be further divided into concretization, replacement of meaning, and amplification of meaning. Concretization is a repetition of the previously mentioned contents within subsequent articulation in more specific ways. This helps listeners to understand the contents of the previous articulation more thoroughly. Replacement of meaning is a repetition of the similar or a variety of related meanings to the previous articulation within subsequent articulation. This helps listeners to understand the meaning of previous articulation in various and abundant ways. Amplification of meaning is the repetitive suggestion of a story indirectly related to the previous articulation. It helps listeners to understand the narrator's story more easily by obtaining additional information about the previous articulation.
Third, focus function means the emphasizing of the content itself by focusing on the content being articulated. The narrator emphasizes the content itself by using repetitive expressions so that listeners can have more impression about the content.
Fourth, complex function is defined when a single repetitive expression has 2 or more functions. We believe that in situations when information is transported by spoken language, narrator consciously or unconsciously use repetitive expressions of complex function, to convey its meaning efficiently and effectively. However, since the detail of complex function can be interpreted differently by different researchers, this category of function is not easy to be a subject for research.