Lying under oath is a serious crime that can lead to severe consequences. This is why it is important to have a wide range of synonyms to accurately describe this action. Some synonyms for lying under oath include perjury, false swearing, giving false testimony, making false statements, and bearing false witness. Other related terms include misleading the court, deceiving the judge, and committing perjury. No matter what term is used, the act of lying under oath is a betrayal of the justice system and must be taken seriously. Those who commit perjury can face serious legal repercussions, including fines, imprisonment, and damage to their reputation.