Reasonable care refers to the level of care that a prudent and aware person would take in similar circumstances. It is a concept used in many legal agreements and insurance policies to define the level of responsibility expected from an individual. There are several synonyms for the term that can be used interchangeably, including due diligence, ordinary care, and proper care. Due diligence refers to the process of taking reasonable steps to identify and prevent potential harm or damage, while ordinary care simply implies the level of care that an average person would take in similar circumstances. Proper care encompasses not only reasonable care but also additional measures that may be necessary to ensure the safety and protection of individuals and assets.