| A | B |
| accrediation | granting approval or belief in a school |
| credential | a document that proves a person is believable |
| credible | believable; reliable |
| credit | to believe that someone will do something |
| creditor | a person who believes that he will be paid back money loaned |
| credulous | tending to believe too easily |
| creed | a set of religious beliefs |
| discredit | to refuse to believe |
| incredible | not believable |
| incredulous | doubting; unwilling or unable to believe |