before, in advance
pre-
to authorize or give permission in advance
preapprove
a test before the real test, usually given to see what is already known
pretest
a measure taken in advance to prevent harm
precaution
to look at or see something before something or someone else
preview
to say what will happen before it occurs
predict
a syllable or word that comes before a root word to change its meaning
prefix
to make a decision before you have all the facts
prejudge
to pay for something before it needs to be paid in full
prepay
to stop something from happening before it occurs
prevent
to come before something else in time, order, or rank
precede