Sicarii is a term used to refer to a group of Jewish zealots who engaged in acts of terror and assassination during the Roman occupation of Palestine in the first century AD. Synonyms for Sicarii include assassins, hitmen, murderers, killers, executioners, slayers, and militants. These groups were known for their brutal tactics and extreme violence. The Sicarii were notorious for targeting Jewish collaborators with the Romans and anyone who didn't support their cause. They used stealth, cunning, and weapons like the sica (a curved dagger) to execute their targets. Though they were eventually defeated by the Romans, the Sicarii left a lasting legacy in Jewish history as an extreme example of resistance against oppressors.