One Norwegian word for "the End" is "Slutt". There are a whole load of others, depending on the context. There is a Norwegian saying that equates to the English one that "all's well that ends well": Når enden er god, er allting godt (literally "when end-the is good, is everything good", i.e. "when the end is good, everything is good", where ende means "end" and the ending -n means "the")
Norwegian Cruise line currently has 11 ships in service, with 2 more being added in the next few years. There is one American ship, called Pride of America. The others are all Norwegian ships: Norwegian Sky, Norwegian Sun, Norwegian Star, Norwegian Dawn, Norwegian Spirit, Norwegian Jewel, Norwegian Pearl, Norwegian Gem, Norwegian Jade, and Norwegian Epic.
Like any language, it takes time to become fluent in Norwegian. Exactly how long it takes will depend on many different things - how much Norwegian you are exposed to, how good you are at learning languages, what sort of study you take, and how you define fluency. It would take years of dedicated study for the average English speaker to learn fluent Norwegian, just as for most languages.