Taxonomy

A taxonomyA taxonomy allows for the classification of things. In WordP... More allows for the classification of things. In WordPress, there are two built-in taxonomies: categories and tags. These taxonomies help further classify postsPosts are time-oriented content in WordPress—usually news,... More and custom postPosts are time-oriented content in WordPress—usually news,... More types. You can also create a custom taxonomyA taxonomy allows for the classification of things. In WordP... More. For example, a common custom taxonomyA taxonomy allows for the classification of things. In WordP... More we use for profiles is Research Area, which might include terms such as Data Science, Arts & Humanities, or Education.

Source: https://wordpress.org/support/article/glossary/#taxonomy