I. noun 1. a narrow passageway between or behind buildings. • he took a short cut along an alley.
• there were a few muggings in the backstreets and alleys.
2. a path lined with trees, bushes, or stones. • alleys of standing stones.
3. [with modifier] — a long, narrow area in which games such as skittles and bowling are played • a skittle alley.
(N. Amer.) either of the two side strips between the singles sideline and the sidelines which count as part of the court in a doubles match.
[Baseball] the area between the outfielders in left-centre or right-centre field.
– origin late Middle English: from Old French alee ‘walking or passage’, from aler ‘go’, from Latin ambulare ‘to walk’.