Which term is synonymous with PRECAUTION?

A precaution is a preventive measure taken to avoid possible harm or danger. It is an action done in advance to protect oneself. A rule is a guideline for behavior or action and is not necessarily focused on safety measures. A routine procedure is a standard way of doing something, which may or may not involve safety precautions. Habit refers to a behavior pattern acquired through repetition and is not specifically related to safety or preventive actions. Therefore, 'Preventive measure' is the correct synonym for 'Precaution' as both involve actions taken to prevent harm or danger.