a construction that serves a variety of discourse functions, including linking sections of discourse together. Example: in the discourse passage ... all you gotta do is put the outdoor condensing unit, ... and refrigerant piping to that coil. So it ... saves-- ... it saves additional work in the future, the word so is a discourse marker that links the preceding section of discourse to the following section. Discourse markers are not discussed in this book except as sources of conjunctions. (Section 15.1.1)