How to pronounce “combust”(verb) in English

So all these things kind of combusted together and they just led to this explosion in a different kind of development, which was the cutting and pasting of these

And you then reintroduce oxygen into that hot gas mix, and combust everything at that point.

Aisha Tyler: The worst I, the worst I wish was that he would spontaneously combust, which isn't even really like a, I think we've proved on Snopes that that could never happen, so.

So this is the airflow coming up through that fire, and the second row of air holes combusting all of those producer gases, the gases that are given off

You can see these jets of flame coming in from that upper row of air holes, where those producer gases are combusted when you mix oxygen