There are a lot of betting terms to master, and understanding, here you can find the general online betting terms out there:
Tic-Tac: A type of sign language used on a racecourse by bookmakers as a means of communication.
Tissue: A betting forecast designed to predict the odds of each runner in an event.
Tongue-Tie: A breathing aid used on horses that has a strip of cloth to stabilise the tongue and stop it from sliding over the bit.
Tote: Betting system that settles bets based on dividends rather than set prices.
Trebles: A Treble consists of 1 bet involving 3 selections in different events. All must be successful to get a return.
Trifecta: A bet placed on the Tote that requires the first three finishing horses to be named in the correct order.
Trixie: A Trixie consists of 4 bets involving 3 selections in different events. The bet includes 3 doubles and 1 treble. A minimum of 2 of your selections must be successful to get a return.