There are few differences. Reality is relating to life. You probably have heard someone say, “Get real." It is an expression and it means quit dreaming and move on. It is the opposite of an illusion. Regarding facts, a fact is something that has occurred and you have proof of it. Here are the definitions of the two words. Fact: Knowledge or information based on real occurrences: an account based on fact; a blur of fact and fancy. Reality: The quality or state of being actual or true.