Realm/relm/ Definition 1 of 4Pro Tip 1/3Historical Usage Originally referred to a royal kingdom, often used in historical or fantasy contexts. The queen's decree was felt throughout the entire realm. Pro Tip 2/3Metaphorical Extension Extended to describe any area someone has control over, even metaphorically. She was undisputed in the realm of ice skating competitions. Pro Tip 3/3Formality A formal term often replaced by 'country' or 'nation' in everyday conversation. Our realm will prosper under the new policies.