- (transitive) To border upon; be next to; abut on; be adjacent to; to support by an abutment. [First attested in the mid 19th century.]
- (intransitive) To touch by means of a mutual border, edge or end; to border on; to lie adjacent; to project; to terminate; to be contiguous; to meet, of an estate, country, etc. [First attested around 1350 to 1470.]
"His land abuts on the road."
- (intransitive) To lean against on one end; to end on, of a part of a building or wall. [First attested in the late 16th century.]
"It was a time when Germany still abutted upon Russia."