WT

WT is a common abreviation of the name of symphonic metal band Within Temptation

"Did you hear the latest WT album?"
"WT is one of the headliners of this year's Download Festival"

wt

word to

person 1- wt if a nigga come up in here talkin some crazy shit ima have to knock ‘em out

person 2- on god nigga

Wt

What but shorter

Kid : hello grandpa
Grandpa with bad hearing : wt?

Wt

Wt basically stands for 'what'.

A: Bro wt you doing
B: Homework 'cause i got nothing better to do