cage means: Secure area to keep selected items, like cigarettes or aerosols. (in Cooking Dictionary)

What else does cage mean?

An enclosure for birds and animals. It is enclosed by wires, bars or wire gratings that allow air in. (in Merlin Dictionary)

For confining prisoners, a fenced or barred enclosure is used. (in Merlin Dictionary)

As for a structure, a skeletal support; also called a framework. (in Merlin Dictionary)

Goal, such as for soccer or hockey, is made from a net that’s attached to a frame. (in Merlin Dictionary)

A cage is a place to confine or put in, or as though in a cage. synonym : Attach . (in Merlin Dictionary)