An alleyway that runs behind a row of houses, or between rows of houses / (slang, euphemistic) The anus.

Used other than figuratively or idiomatically: see blind, alley. A street or passageway that leads nowhere. / (figuratively) A course of inquiry that leads nowhere.

plural of back alley

plural of blind alley

plural of alley oop

plural of bowling alley

(geography, meteorology) Area located in the middle of the USA, where tornadoes are particularly frequent and intense.

(nautical) A passage extending from the engine room to the stern, and containing the propeller shaft.

(Ireland) A place for playing handball, ranging in structure from a patch of hard flat ground beside a gable to an indoor four-walled court similar to a squash court / (US, obsolete) A bowling alley

plural of ball alley