noun - the outer edge or boundary of an area, often referring to a secured or guarded zone
noun - a person from the ancient city of Troy, or relating to Troy in ancient Greek history
noun - the act of forcing people to accept something such as a rule, law, tax, or belief
noun - people of high social rank who have titles such as duke, earl, or baron; the aristocracy
noun - the process of making a liquid weaker or less concentrated by adding water or another liquid