.tt is the country code top-level domain (ccTLD) in the Domain Name System of the Internet for the Republic of Trinidad and Tobago. The Trinidad and Tobago Network Information ...
http://en.wikipedia.org/wiki/.tt

TT may refer to: General. TT Temco TT a 19502 jet trainer, evaluates for the US Navy and US Air Force. Tatar language; Telegraphic transfer (or telex transfer or T/T), a method ...
http://en.wikipedia.org/wiki/TT

X_TRADER® Automated Trading Markets & Exchanges ? TT-Supported Product Database Charting & Analytics Risk & Administration API Solutions X_TRADER® Plug-ins TT Trainer Simulator TT ...
http://www.tradingtechnologies.com/

TT abbr. telegraphic transfer teletypewriter transit time trust territory
http://www.answers.com/topic/tt

News, results, history, racer database, and bulletin board for the IOM TT. Official site.
http://www.iomtt.com/