Noun : the course of a stream. ,in the course of a year; in the course of the battle. ,One runner fell halfway around the course. ,a course of action. ,as a matter of course; the course of a disease. ,a course of lectures; a course of medical treatments. ,a course in economics. ,The main course was roast chicken with mashed potatoes and peas.    From Dictionary.com. 

Verb (used without object) : The blood of ancient emperors courses through his veins.    From Dictionary.com.