Street names reflected this bottom-up emergence, and street names were not coordinated from development to development, even for along the same north-south or east-west line. Some names were used more than once, by different streets across various Denver neighborhoods and surrounding towns. There was no universal system for the use of terms like "street", "avenue", etc. Later, these terms were defined such that "street" designated roads running north and south and aligned with the hundreds of the numbering system, with "court" for intermediate (non-hundreds) north-south roads and "way" for roads which start north-south but curve to intersect with another north-south road; "avenue", "place", and "drive" (respectively) are the corresponding terms for roads running east and west. Major arterials in both directions, however, are often called "boulevards", and "road" and "parkway" also make appearances.