The phrase "false witnesses" refers to individuals who provide inaccurate or misleading information in a legal setting. There are several synonyms for this term, including perjurers, liars, deceivers, maligners, calumniators, and slanderers. Each of these words suggests a deliberate attempt to mislead or harm another person or group through dishonesty. False witnesses are a serious problem in the justice system, as their testimony can lead to wrongful convictions or acquittals. It is important to recognize and hold accountable those who bear false witness, in order to ensure a fair and just legal process for all.