cages is a form of:

Cage



noun
1.
(a framework with wires or bars in which birds of animals are kept, an openwork structure, the basket) ទ្រុង, ប្រអប់, ឃ្លុប
ENGLISH MEANING
noun
1.
A box or inclosure, wholly or partly of openwork, in wood or metal, used for confining birds or other animals.
2.
A place of confinement for malefactors
3.
An outer framework of timber, inclosing something within it; as, the cage of a staircase.
4.
A skeleton frame to limit the motion of a loose piece, as a ball valve.
5.
A wirework strainer, used in connection with pumps and pipes.
6.
The box, bucket, or inclosed platform of a lift or elevator; a cagelike structure moving in a shaft.
7.
The drum on which the rope is wound in a hoisting whim.
8.
The catcher's wire mask.
verb
1.
(INTRANSITIVE) To confine in, or as in, a cage; to shut up or confine.