When two parcels of land or real estate touch each other or share a common boundary. To reach, to touch. In old law, the ends were said to abut, the sides to adjoin. Property is described as “abutting” on a street, road, etc, when it adjoins or is adjacent thereto, either in the sense of actually touching it or being practically contiguous to it, being separated by no more than a small and inconsiderable distance, but not when another lot, a street, or any other such distance intervenes.
ABUT
TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.