1)Can stand for Teen Institute, a group dedicated to helping young adults avoid substance abuse. Is somewhat similar to SADD, but sometimes people are slightly less likely to join it just cause their friends did. In some schools, TI and SADD are combined due to their similar goals.
2)Texas Instruments, manufacturer of many fine calculators, such as the TI-83 (a godsend for algebra students), TI-84, etc.

TI a rapper from ATL. He always seem to diss everyone like ludacris and lil flip but still a very good rapper.

a rapper from ATL.quoted from Ti in an interview "Well my name is Tip. Anybody that knows me from the streets or knows me personally calls me Tip. My momma calls me Tip, my grandmomma calls me Tip, everybody. When I rap I say T.I.P. because when I say Tip, because of my accent, people used to think I was saying Chip, Chuck, you know.. so I spell it out T.I.P.

I got signed as T.I.P. but when LaFace Records merged with Arista that put me on the same label as Q-Tip and they didn't want to work two albums with names so similar. So they asked me to change my name to T.I. "

The finest rapper with the hottest lyrics.The real stand-up guy of ATL.Flip you heard T.I.("IGOT NINETY- NINE PROBLEMS BUT FLIP AIN'T ONE)HOW YOU LOVE THAT.TI NO WORRIES CAUSE BABY WE KNOW THAT YOUR THE KING OF THE SOUTH.FUCK THEM HATERS!!!!!!!!!!!

an atlanta rapper

A sexy rapper from the South, Atlanta to be exact with his 2nd album in stores now Trap Muzik. He is too serious.

T.I. is a rapper from the westside of A-Town. He is known for being the King of the South. He's one of the best rappers out.

A southern rapper who is from the South.