Related Clues:

• Contravene
• Refuse to acknowledge
• Abnegate
• It's all three words of a liar's policy
• Refuse to accept
• One-third of a liar's policy
• Shoot down
• Claim otherwise
• Reject, as an accusation
• Renounce
• Disclaim
• ''For He's a Jolly Good Fellow'' word
• Prevent from scoring, e.g.
• Fail to allow
• Say it is n't so