An alley in tennis is the area between the single's line and double's line.
A sideline of a tennis court is called an alley.
In tennis there is singles, and doubles. In both there is playing baseline/server, alley/net/volley.
An alley is a narrow street or passageway, or an establishment where bowling is played. In tennis, it is the extra area between the tramlines which is used for doubles matches.
burn the alley.
From baseline to baseline and from alley to alley, a tennis court measures 78 feet by 36 feet. This does not include the extra area beyond the lines where the players run. For more specific measurements, check this link for a detailed tennis court diagram: http://www.prosportsofficialteamsites.com/Tennis_Nova_Sports_Court_novasports.gif
You probably mean "Lawn" tennis. Lawn tennis is simply tennis played on a grass court.
A zero score in tennis.