alley /ˈæl.i/noun 11forms 1 noun11 •a small street, not much wider than a path, that runs along the backs of buildingsThe parking lot to my friend's apartment building is in the alley. •A walk or passage in a garden or park, bordered by rows of trees or bushes.I know each lane and every alley green. — 1634 •A passageway between rows of pews in a church. •The space between two rows of compositors' stands in a printing office. •An establishment where bowling is played. •An elongated wooden strip of floor along which a bowling ball is rolled. •The area between the outfielders.He hit one deep into the alley. •The extra area between the sidelines or tramlines on a tennis court that is used for doubles matches. •A marble (small ball used in games). •Any passage having the entrance represented as wider than the exit, so as to give the appearance of length. •(informal, rare) A group of clowns; the collective noun for clowns.[…] alley of clowns had sprung like a fungus growth from the dung heap of the First World War. — 2017 formsalleys