This research was focused on the types of coordinate conjunction and the functions
of the most type of coordinate conjunction found on the Barack Obama’s speech.
This research was applied by using descriptive qualitative method. Barack Obama
was the subject of this study. The source of data in this research was the scripted of
Barack Obama’s first victory speech. All of the words, the phrases and/or the
sentences consisting coordinate conjunctions appeared in the speech were the data in
this study. The researcher was the primary instrument of the study supported by the
secondary instrument called table analysis. The result showed that the most type of
coordinate conjunction was ‘and’ consisting of 113 items of coordinate conjunction
uttered by Obama (83.09%). Meanwhile, the functions of the most coordinate
conjunctions were categorized into three parts called (1) conjunctions joining words;
(2) conjunctions joining groups of word; and (3) conjunctions joining parts of
compound sentence. The researcher pointed out suggestions to 1) English teachers to
provide clear understanding regarding the coordinate conjunction to their students, 2)
students to implement their understanding in learning process, and 3) other
researchers to explore the implementation of the types of conjunctions and their
functions.