Chauvinism is a form of extreme patriotism and a belief in national superiority and glory. Whereas patriotism and nationalism may represent temperate pride, chauvinism is intemperate. It can be also defined as an irrational belief in the superiority or dominance of one's own group or people.
When you brake to stop your car, you are decelerating. When a ball rolls on the ground and slows down to a stop, the ball is decelerating. Deceleration is the term used for acceleration that causes an object to slow down, while acceleration is motion where the speed of an object changes every second. However, in everyday usage, acceleration is usually taken to mean speeding up. Now that you know what deceleration is, let's look at an example.
Deceleration is a slowing down: the unexpected deceleration of your car might mean that you've run out of gas. Use the noun deceleration when you talk about a gradual decrease in speed. When you're on a Ferris wheel, its deceleration tells you that the ride is almost over, and the deceleration of a train at a railroad crossing happens for safety reasons. The opposite of deceleration is acceleration, or speeding up. The word deceleration was originally an 1890's railroad term, constructed by adding de, or the opposite of to acceleration.