Marks of identification refer to any distinguishing features used to identify an individual or item. There are numerous synonyms for this term, including identifying traits, distinctive characteristics, signatures, hallmarks, distinctive markers, telltale signs, unique indicators, and diagnostic features. These labels are often used in fields such as forensic science, where the examination and analysis of physical evidence are crucial to identifying suspects or linking them to a crime scene. They may also be used in general for purposes such as product identification or customer recognition. No matter the context, marks of identification are vital in establishing and verifying identity and are essential for maintaining personal, commercial, and legal security.