Available Definitions:
1) a. - Broken off; very steep, or craggy, as rocks, precipices, banks; precipitous; steep; as, abrupt places.
2) a. - Without notice to prepare the mind for the event; sudden; hasty; unceremonious.
3) a. - Having sudden transitions from one subject to another; unconnected.
4) a. - Suddenly terminating, as if cut off.
5) n. - An abrupt place.
6) v. t. - To tear off or asunder.