TT

American  

abbreviation

1. Trust Territories (approved especially for use with zip code).

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TT ¹ British  

abbreviation

1. teetotal

2. teetotaller

3. telegraphic transfer: a method of sending money abroad by cabled transfer between banks

4. Tourist Trophy (annual motorcycle races held in the Isle of Man)

5. tuberculin-tested

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abbreviation

1. Trinidad and Tobago (international car registration)

tt ² British  

abbreviation

1. Trinidad and Tobago

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Example Sentences

Around 80 percent of Swedish primary and middle schools already have bans on mobile phones in the classroom, introduced at the principals' discretion, according to Swedish news agency TT.

From Barron's • Jan. 28, 2026

That’s the opinion of one specialist emerging markets investment house, TT International, which is based in London.

From MarketWatch • Oct. 30, 2025

Justyna Hulboj, 27, and Lena Czepczor were hit by an Audi TT while walking on Scott Hall Road on 16 January 2023.

From BBC • May 16, 2024

Janet Cowden lost her fiancé Paul Shoesmith in a motorbike crash during the Isle of Man TT races in 2016.

From BBC • Feb. 2, 2024

But with zero, TT meant 61; 3,601 was written as T^T. Zero was born out of the need to give any given sequence of Babylonian digits a unique, permanent meaning.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife