cage

n 1: an enclosure made or wire or metal bars in which birds or animals are kept syn coop

2: something that restricts freedom as a cage restricts movement

3: United States composer of avant-garde music (1912-1992) syn John Cage, John Milton Cage Jr.

4: the net that is the goal in ice hockey 5: a movable screen placed behind home base to catch balls during batting practice syn batting cage

v : confine in a cage; "The animal was caged" syn cage in

Source: WordNet. Princeton University