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