lad·die 
(lădē)
(lădē)n.
A boy or young man; a lad.
- trigon
- trigonal
- trigonometric
- trigonometrical
- trigonometrically
- trigonometric function
- trigonometry
- trigram
- trigrammatic
- trigrammatically
- trigraph
- trigraphic
- trigraphically
- trihalomethane
- trihedral
- trihedron
- trihybrid
- triiodothyronine
- trike
- trilateral
- trilateralism
- trilateralist
- trilaterally
- trilby
- trilemma