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