Pre- means before, in advance

preapprove (v) - to authorize or give permission in advance

precaution (n) - a measure taken in advance to prevent harm

precede (v) - to come before something else in time, order, or rank

predict (v) - to say what will happen before it occurs

prefix (n) - a syllable or word that comes before a root word to change its meaning

prejudge (v) - to make a decision before you have all of the facts

prepay (v) - to pay for something before it needs to be paid in full

pretest (n) - a test before the real test, usually given to see what is already known

prevent (v) - to stop something from happening before it occurs

preview (v) - to look at or see something before something or someone else