heir. n. 1. A person who inherits or is entitled by law or by the terms of a will to inherit the estate of another. 2. A person who succeeds or is in line to succeed to a hereditary rank, title, or office.
A: The Allied Powers, or Allies, refers to coalitions of primarily North American nations victorious over rival, central-European forces in World War I and World War II. The four nations that recurred as the main forces of the Allied Powers in both wars were France, Russia/USSR, the United Kingdom and the United States. Continue Reading
The word allies is the plural of ally, which refers to countries in friendly military association with each other -- like pals. It is opposite of an enemy. In the WW2 sense, the Allies were all the countries opposed to the Axis (Germany, Italy and Japan).