Which term refers to organizing or categorizing based on shared characteristics?

The term that refers to organizing or categorizing based on shared characteristics is "Classify." Classification involves grouping items or concepts that share common traits or characteristics, allowing for easier identification and application of information. This process is fundamental in various fields, such as biology, where organisms are categorized into different species based on shared features, or in data organization, where information is categorized to streamline access and comprehension.

While both "Categorise" and "Classify" involve similar processes of grouping, classify is more precise in the context of formal categorization based on defined characteristics. The other terms, "Analyse" and "Clarify," do not pertain to organizing or grouping based on shared traits; instead, they focus on examining details and making things clear, respectively.