English Note 5

Pre=before

preadolescence 
n. 
the period between childhood and adolescence

precaution  
n.
something that is done in advance in order to prevent problems or to avoid danger:
You must take all reasonable precautions to protect yourself and your family.

a way of referring to contraception:
We didn't take any precautions and I got pregnant.

predecessor 
n.  
a person who did a job before somebody else:
The new president reversed many of the policies of his predecessor.

predictive  
adj.
connected with the ability to show what will happen in the future:
the predictive power of science

pregnancy    
n.
the state of being pregnant:
Many women experience sickness during pregnancy.