How to pronounce“nnt”in English

Now, what is this, the NNT?

But you'd use that time to look at the crashes that would have happened overnight from a process we called Stress, which is NNT...

we normally make the N, with the tongue tip up to the gum ridge, nn, and then slide it down the teeth to the TH. TH, nnth, nnth.

The ending is either an N and fully a pronounced T, or, much more common, a stop of a nasal sound: nnt, nnt.