Versailles Treaty: This is the most famous treaty that came out of the Paris Peace Conference. It officially ended World War I and held Germany responsible for starting the war, imposing heavy penalties on them.
League of Nations: An international organization proposed during the conference by President Woodrow Wilson as part of his Fourteen Points. Its goal was to maintain world peace, but it failed largely because the U.S., despite being its main architect, never joined.
Reparations: These are payments made by a defeated country after a war to compensate another country for damages caused during that war. Germany was forced to pay large reparations after WWI as part of Versailles Treaty.