The phrase "instrument torture" refers to the use of tools or devices to inflict physical pain or discomfort on a person for purposes such as interrogation, punishment, or revenge. Some synonyms for this term include "enhanced interrogation techniques," "pain compliance," or "coercive interrogation." Other similar phrases might include "physical torture," "torture implements," or simply "torture devices." While these terms are often used in the context of criminal or military actions, it is important to remember that torture is universally recognized as a violation of human rights and a crime against humanity, and should never be condoned or supported in any form or context.