cage

nouns

an enclosure made or wire or metal bars in which birds or animals can be kept
something that restricts freedom as a cage restricts movement
is a type of (narrower)
the state of being physically constrained
"dogs should be kept under restraint"
the net that is the goal in ice hockey
is a type of (narrower)
a goal lined with netting (as in soccer or hockey)
a movable screen placed behind home base to catch balls during batting practice

verbs

confine in a cage
"The animal was caged"