Taxpayer Identification Number 
Tax Identification Number 
Triangulated Irregular Network 
Taxpayer Identification Numbers 
Titanium Nitride 
Taxpayer Identifying Number 
tactical installation and networking 
Taino Tours 
Taxpayer Identfication Number 
Taxpayer Information Number 
Telekom Information Network 
Telephone Interface Mode 
Temperature Independent 
Temple-Inland Inc. 
TEMPLE-INLAND, INC 
temporary identification number 
Terminal Indicate Number 
Test Information 
testicular intraepithelial neoplasia 
threaded internet news 
Three times a night 
tinman 
Transaction Identification Number 
Transportation Information Network 
Triangular Irregular Network 
tubulointerstitial nephritis 
tubulointerstitial nephropathy