Definitions of cage:

• noun:   an enclosure made or wire or metal bars in which birds or animals are kept
• noun:   the net that is the goal in ice hockey
• noun:   United States composer of avant-garde music (1912-1992)
• noun:   something that restricts freedom as a cage restricts movement
• noun:   a movable screen placed behind home base to catch balls during batting practice
• verb:   confine in a cage

  Example: "The animal was caged"

• name:  A surname (rare: 1 in 50000 families; popularity rank in the U.S.: #4807)