to make people feel strong emotions
Example:
- to stir up hatred
- Going back there stirred up a lot of memories for her.
to try to cause arguments or problems
Example:
- to stir up a debate
- Whenever he's around, he always manages to stir up trouble.
- We've got enough problems without you trying to stir things up.
to make something move around in water or air
Example:
- The wind stirred up a lot of dust.