The term 'PIRATE's Realm' can be broken down into two crossword solutions: SEA, which stands for the body of salt water that covers most of the Earth's surface, and 3 letters. The term 'PIRATE's Realm' is often used to refer to the areas of the world's oceans where pirates have historically operated, such as the Caribbean SEA and the Indian Ocean. These areas are known for their lawlessness and lack of government control, making them ideal for PIRATE activity.