Truncate silence. The way I understand the word truncate, and the way it seems to behave from briefly playing with it, truncate means delete some of the silence. **** hell. Surely the issue here is gobsmackingly obviously before I even type it. We don’t want to truncate this silence, we want to DELETE IT ****.
Cheers, thanks. Why do we have to type this stonkingly obvious ****?
Truncate
definition: to shorten by cutting off a part; cut short
I’ve no idea why you felt compelled to post that 
We do our best to keep this forum family friendly, so please try to avoid typing expletives.
Truncate Silence (in version 2.0.5) never actually deletes the entire silence it detects, because it is limited to truncating silence to 1 millisecond. That limitation will be removed in the next 2.0.6 version of Audacity, but nonetheless it isn’t simply a “delete silence” feature because it has the option of shortening (but not removing) the detected silence.
Gale