Yankee can refer to someone from the northern part of the US, or from the US in general – often the term is used in a derogatory way, especially by those outside the US. To see a Yankee in your dreams indicates whatever feelings you associate with northerners. It could be a business-like, fast-paced attitude or it could be associated with grander, rudeness, and disregard for others. Whatever qualities you associate with a Yankee, look for areas in your life where you express those qualities. If they are qualities you do not prefer to have, find ways to replace them with qualities you do prefer. Alternatively seeing a Yankee could indicate rivalry, as in the rivalry between the NY Yankees and Boston Red Sox.