n. A passage; a way or an opening for entrance into a place; any opening or passage by which a thing is or may be introduced or approached.n. A roadway of approach to a country-house, particularly when straight, of considerable length, and shaded by a row of trees on each side; a drive in a private country-place; a walk in a garden or demain of some pretensions as to style or size.n. A street; properly, a wide street planted with trees and often with turfed spaces on either side, or a garden or shaded promenade in the middle: used in New York, Washington, etc., in the names of the longest and generally the widest streets, as Fifth or Pennsylvania Avenue, but in some American cities without special reference to the character of the street.n. Figuratively, means of access or attainment.n. In archaeology, a series of megalithic stones arranged in a row.