1. Tested and proved to be reliable
   - tested, time-tested, tried

See also: dependable, reliable

• tret
• trevally
• Trevelyan
• Trevino
• Trevithick
• trews
• trey
• TRF
• TRH
• tri-
• tri-band
• tri-chad
• triable
• freedom of the seas
• freedom of thought
• Freedom Party
• freedom rider
• freedom to bear arms
• freedwoman
• freehand
• freehanded
• freehearted
• freehold
• freeholder
• freeing