While it's not a common usage, "rile" can be used as a noun in some dialects. In this case, it refers to a disturbance or commotion. However, this usage is less common and often considered informal.
Here are some examples:
Verb:
* "The loud music really riled her up."
* "Don't try to rile me up, I'm in a good mood."
Noun:
* (Informal) "There was a real rile going on outside."
* (Informal) "The kids caused quite a rile in the classroom."