During raids, how do you let everyone know when to die?

So my guild is running organized Rancor raids, and we want a way to convey to members when it's ok to die so that we all get to score without the phase closing out. How do you guys explain to new members when to die?

We say "load in". That means start fighting, but don't die.

Then we say "commit". That means allow your toons to die and reload if you can.

Just curious to see how other guilds are doing this to see if there's anything that we can improve on.

Thanks.