jail·er also jail·or 
(jālər)
(jālər)n.
One whose responsibility is keeping a jail.
- trigonometric
- trigonometrical
- trigonometrically
- trigonometric function
- trigonometry
- trigram
- trigrammatic
- trigrammatically
- trigraph
- trigraphic
- trigraphically
- trihalomethane
- trihedral
- trihedron
- trihybrid
- triiodothyronine
- trike
- trilateral
- trilateralism
- trilateralist
- trilaterally
- trilby
- trilemma
- trilinear
- trilingual