Before we create we must understand. A priori judgments are made outside of experience.
Analytic statements are true based solely on the meanings of the words involved.
All you need to determine the truth or falsity of an analytic judgment is a dictionary. If you know the meanings of all the words involved, you can see that this statement is true. Synthetic statements can't be judged true or false based solely on the meanings of the words. You don't know whether or not it's true, because you don't know me or my cat. Its truth or falsity does not depend on the meaning of the words, but on whether or not it corresponds with the world.