Webster's Revised Unabridged Dictionary · 1913

Cage

Cage , noun

[French cage, from Latin cavea cavity, cage, from cavus hollow. Compare Cave, n., Cajole, Gabion.]

1.
A box or inclosure, wholly or partly of openwork, in wood or metal, used for confining birds or other animals.
In his cage, like parrot fine and gay. — Cowper
2.
A place of confinement for malefactors — Shakespeare
Stone walls do not a prison make, Nor iron bars a cage. — Lovelace
3.
(Carpentry) An outer framework of timber, inclosing something within it; as, the cage of a staircase. — Gwilt
4.
(a) (Machinery) A skeleton frame to limit the motion of a loose piece, as a ball valve.
(b)
(Machinery) A wirework strainer, used in connection with pumps and pipes.
5.
The box, bucket, or inclosed platform of a lift or elevator; a cagelike structure moving in a shaft.
6.
(Mining) The drum on which the rope is wound in a hoisting whim.
7.
(Baseball) The catcher's wire mask.

Cage (kāj) , intransitive verb

To confine in, or as in, a cage; to shut up or confine.
Caged and starved to death. — Cowper