What is the definition of tautology?

Means " saying the same thing."

# Needless repetition: "Joe is stronger and more powerful than Ed."

# In logic, a syllogism that is true whether its elements are true or not: "Either it will rain tomorrow, or it won't." Furthermore, to over exagerate something or to make a it sound more interesting: * 'A FREE GIFT' - Something that is a GIFT is already FREE * 'FROZEN ICE' - ICE is already FROZEN * 'ADDED BONOUS' - A BONOUS it is already ADDED to to the original 'prize' or 'present', etc