| Idiom | Meaning | Example | 
| tough times | 
hard times
 | 
When Sue gave birth to twins and Dave lost his job, they lived through tough times.
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| tough titty | 
(See tough luck)
 | 
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| toughen up | 
become tougher, grow stronger
 | 
The army will toughen him up. They'll develop his stamina.
 | 
| tower of strength | 
(See a tower of strength)
 | 
 | 
| toy with | 
not be serious about me, not take me seriously
 | 
I love her, but she's just toying with me - playing with me.
 | 
| track record | 
list of achievements, summary of career work
 | 
Lou's track record is excellent. She was top seller last year.
 | 
| trade insults | 
insult each other, say rude things to each other, mudsling
 | 
When the two men couldn't agree on the cause of the problem,  they began trading insults.
 | 
| trade secret | 
a business secret, a special recipe or formula
 | 
I won't tell how Paula makes  her pizza. It's a trade secret.
 | 
| traffic jam | 
traffic that is not moving, many vehicles on one road
 | 
I was late for class because of a traffic jam. Honest!
 | 
| train of thought | 
(See lose my train of thought)
 | 
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