| A | B |
| coexist | means to live together peacefully |
| coincidence | something that happens by accident |
| collect | to gather things together |
| collide | to bump into each other |
| comrade | friend |
| concur | to have the same opinion as |
| coordinate | work together or to help people work together |
| correspond | similar to each other |
| communal | shared by the community |
| composite | made of several different things |
| posterity | refers to people who are not born yet; they came after others |
| postpone | delay or do it after we had planned to |
| postseason | events happen after a season has ended |
| predict | we say that something will happen before it actually happens |
| prejudice | a negative judgement or an opinion formed before knowing or examining the facts |
| premature | happens before it's ready |
| preteen | a person between nine and twelve before that person becomes a teenager |
| preview | a showing of something before a regular showing |
| precaution | is an action taken to guard against danger, error, or accident |
| preface | is a part of a book that comes before the main part and introduces it |
| antagonism | a feeling of hatred or of being against something |
| Antarctica | is the region around the South Pole |
| antiseptic | a medicine that kills or acts against germs |
| antisocial | is against the good of society |
| misbehave | to act or behave badly |
| misfortune | bad luck or bad fortune |
| mismatch | something that does not belong or match with something else |
| mistrust | to doubt or suspect, to not trust |
| antidote | something that works against a poison or a bad state |
| mislead | we give them a wrong idea |