When people say DT.. does it generally mean Double Tail.. or Delta Tail?

Or does it go both way?

I want to know the 'real' term so I wont get confused.

DT= Double Tail
Delta= Delta

thanks :) making sure

I've seen DT used to mean delta, but it is most commonly used to mean double tail, yes

If you've seen it used to represent "delta" it was done incorrectly as it is recognized to mean "double tail" by the IBC, et al.