stability –n. a quality or state of not being not easily changed

benefit –n. a good or helpful result

manage –v. to have control of something, such as a business

navigation –n. the activity of finding the way to get to a place when you are traveling by in a vehicle

contribute –v. to help to cause something to happen

regional –adj. a part of a country, or of the world, that is different from other parts in certain ways