| A | B |
| cred | to believe |
| accreditation | granting approval or belief in a school |
| credential | a document that proves a person is believable |
| credible | believable or reliable |
| credit | to believe that someone will do something |
| creditor | a person who believes he will be paid back money he loans |
| credulous | tending to believe or be fooled too easily |
| creed | a set of religious beliefs or principles |
| discredit | to refuse to believe and reject as untrue |
| incredible | not believable or unlikely |
| incredulous | unwilling to believe or doubting |