1. tells lies while under oath in a court of law or other legal proceeding
Usage: legal term; third person singular present tense

Examples

• The witness perjures himself when he denies knowing the defendant.
• Anyone who perjures themselves in court faces serious criminal charges.
• The prosecutor argued that the defendant perjures herself repeatedly during testimony.
• If a witness perjures themselves, it can result in a mistrial.
• The judge warned that anyone who perjures themselves will be held in contempt.
• She perjures herself by claiming she was never at the scene of the crime.