Tabled - This is the "minutes of the meeting" word
Postponed/deferred - If you know that it will be a lenghyh discussion and it needs to be removed from the agenda
Suspended - If you are in the meeting, you might say "Let's suspend this discussion for now and make it the main topic for a separate meeting."
We also talk about issues that go in the "parking lot" - meaning you put it to the side and discuss it later.
I've also heard "Let's put a pin in this" to mean this, but I don't know where this expression came from or whether it's widely used. I don't use it.
Student or Learner