- Contradict
- contravene
- Declare as untrue
- Declare untrue
- Disaffirm
- Disavow
- Disclaim
- Abolish
- Always nullify negligent union leaders
- Call off
- Cancel
- Cancel (marriage)
- Cancel annual missing leading article
- Cancel lay-off annually
- Disprove
- Disprove that potato or yam grows backwards
- Drive back
- Knock back
- Negate
- Prove to be false
- Refute