In World War I the alliance of Great Britain and France and Russia and all the other nations that became allied with them in opposing the Central Powers WordNet 3.0 & Open English WordNet

The Allies of World War I, Entente Powers, or Allied Powers were a coalition of countries led by France, the United Kingdom, Russia, Italy, Japan, and the United States against the Central Powers of Germany, Austria-Hungary, the Ottoman Empire, Bulgaria, and their colonies during the First World War. Wikipedia

Member nations of the World War I Alliance Wikipedia Disambiguation

Group of victorious countries of World War I Wikidata

The countries allied against the Central Powers during World War I, including especially the United Kingdom, the Russian Empire, and France. Wiktionary