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)