What is the difference b/n guess and estimate? -

What is the difference b/n guess and estimate? A guess is an unsupported prediction. No facts just a guess. An estimate, on the other hand, is a prediction based on previous experience or on documented facts (i.e. cost of the parts and the labor) the definition of ESTIMATE is "AN EDUCATED GUESS"... it can kind of be classified as a "PREDICTION"...u assume what an outcome will be because you have facts that point to that outcome None. Except an estimate sounds slightly more professional.