CAP 413 uses the phrase "take off roll"
See chapter 4.
"1.7.13 When an aircraft is about to take-off or has commenced the take-off roll "
When I said I commenced my roll, that was short for "take-off roll".
It had nothing to do with a touch and go....and I wasn't doing a roller.
I think a lot of pilots know what is meant by take-off roll, or what I meant by saying I "commenced my roll".