cage, n.All

A Cage is mostly air.

What vegetable is kept in a cage?A zoo-chini

The Cage is a stultifying thing — If you want a wild bird to sing, do not put him in cage.

A Cage sometimes goes in search of a bird.

A Cage is cruel — a robin redbreast in a cage puts all heaven in a rage.

A Cage is a crib with a roof